diff --git a/examples/product_taxonomy_knowledge_graph/crawled_products/product_1028.json b/examples/product_taxonomy_knowledge_graph/crawled_products/product_1028.json
deleted file mode 100644
index 7a1b6d2d..00000000
--- a/examples/product_taxonomy_knowledge_graph/crawled_products/product_1028.json
+++ /dev/null
@@ -1,49 +0,0 @@
-{
-  "source": "https://www.staples.com/staples-brights-multipurpose-paper-24-lbs-8-5-x-11-dark-green-500-ream-20103/product_733092",
-  "title": "Staples Brights Multipurpose Paper, 24 lbs., 8.5\" x 11\", Dark Green, 500/Ream (20103)",
-  "price": "$21.99",
-  "highlights": [],
-  "description": {
-    "header": "Staples Colored Paper is the ideal choice for all your professional and crafting projects!",
-    "paragraph": "Staples Colored Paper, in Dark Green, is the perfect choice for your flyers, brochures, presentations, and important documents! With a 24 lb. basis weight, this paper has a professional feel and provides easy double-sided documents. Staples paper is acid-free and comes with 500 sheets of paper per pack so you always have enough on hand. Plus, it is compatible with copiers, inkjet and laser printers!",
-    "bullets": [
-      "Colored paper is ideal for direct mail, flyers, and office or school projects",
-      "Each pack comes with 500 sheets of Dark Green colored paper",
-      "Paper weight: 24 lb.",
-      "Each sheet is 8.5\" x 11\"",
-      "Compatible with laser and inkjet printers",
-      "Staples paper is Acid-Free to keep from fading and disintegrating over time",
-      "Staples paper is FSC Certified"
-    ]
-  },
-  "specifications": {
-    "features": {
-      "Hole Punched": "No"
-    },
-    "quantity": {
-      "Sheets Per Ream or Pack": "500",
-      "Selling Quantity": "1",
-      "Selling Quantity (UOM)": "Ream",
-      "Sheet Quantity": "500 to 599",
-      "Number of Reams": "1-Ream",
-      "Total Number of Sheets": "500"
-    },
-    "size & weight": {
-      "Paper Weight (lbs.)": "24",
-      "Width in Inches": "8.5",
-      "Length in Inches": "11",
-      "Sheet Dimension": "8.5\" x 11\" (US letter)"
-    },
-    "type": {
-      "Paper Color Type": "Brights",
-      "Paper Type": "Multipurpose",
-      "Color Family": "Green",
-      "Acid Free": "Acid Free",
-      "True Color": "Dark Green"
-    },
-    "additional details": {
-      "Series or Collection": "Brights",
-      "Next Day Delivery": "Yes"
-    }
-  }
-}
\ No newline at end of file
diff --git a/examples/product_taxonomy_knowledge_graph/crawled_products/product_1385.json b/examples/product_taxonomy_knowledge_graph/crawled_products/product_1385.json
deleted file mode 100644
index b9ecb60b..00000000
--- a/examples/product_taxonomy_knowledge_graph/crawled_products/product_1385.json
+++ /dev/null
@@ -1,46 +0,0 @@
-{
-  "source": "https://www.staples.com/thermos-minecraft-lunch-box-multicolor-k22055006/product_24474004",
-  "title": "Thermos Minecraft Lunch Box, Multicolor (K224055006ST)",
-  "price": "$17.99",
-  "highlights": [
-    "This lunch box keeps food cold and displays one of the most popular video games of all time",
-    "Dimensions: 7.5\"H x 9.5\"W x 3.75\"D",
-    "Comes in gray/green with a multicolored Minecraft pattern and made of polyethylene foam/low-density polyethylene (LDPE)"
-  ],
-  "description": {
-    "paragraph": "The Thermos Minecraft lunch box features one of the most popular video games of all time. With a large insulated compartment, food is safe and kept cold.",
-    "bullets": [
-      "This lunch box keeps food cold and displays one of the most popular video games of all time",
-      "Dimensions: 7.5\"H x 9.5\"W x 3.75\"D",
-      "Comes in gray/green with a multicolored Minecraft pattern and made of polyethylene foam/low-density polyethylene (LDPE)",
-      "Insulated to keep drinks and food chilled",
-      "One compartment features zipper closures",
-      "With a large insulated compartment, food is safe and kept cold",
-      "Isotec premium 0.16\" closed-cell PE foam insulation in the compartment, padded handle"
-    ]
-  },
-  "specifications": {
-    "dimensions": {
-      "Depth in Inches": "3.75",
-      "Width in Inches": "9.5",
-      "Height in Inches": "7.5",
-      "Weight (lbs.)": "0.68"
-    },
-    "features": {
-      "Insulated": "Insulated"
-    },
-    "style": {
-      "Color Family": "Gray/Silver",
-      "True Color": "Gray/Green",
-      "Lunch Bags & Boxes Type": "Lunch Bag",
-      "Lunch Bag & Box Pattern": "Novelty",
-      "Lunch Bag & Box Material": "Polyethylene",
-      "Exact Design": "Minecraft Zombie",
-      "Main Compartment Closure Type": "Zipper"
-    },
-    "additional details": {
-      "Age Group": "Youth",
-      "# of Compartments": "1"
-    }
-  }
-}
\ No newline at end of file
diff --git a/examples/product_taxonomy_knowledge_graph/crawled_products/product_1423.json b/examples/product_taxonomy_knowledge_graph/crawled_products/product_1423.json
deleted file mode 100644
index 4ce21579..00000000
--- a/examples/product_taxonomy_knowledge_graph/crawled_products/product_1423.json
+++ /dev/null
@@ -1,60 +0,0 @@
-{
-  "source": "https://www.staples.com/tru-red-8-5-x-11-multipurpose-paper-20-lbs-96-brightness-500-sheets-ream-5-reams-carton-tr56963/product_1147484",
-  "title": "TRU RED\u2122 8.5\" x 11\" Multipurpose Paper, 20 lbs., 96 Brightness, 500 Sheets/Ream, 5 Reams/Carton (TR56963)",
-  "price": "$29.99",
-  "highlights": [],
-  "description": {
-    "header": "Keep office printers and copiers running smoothly with this TRU RED\u2122 8.5 x 11\" multipurpose paper.",
-    "paragraph": "Print confidently with this multipurpose color printer paper. The 96 brightness rating provides an ideal backdrop for color images, letting you create impressive marketing materials and reports. Engineered to prevent jamming for effortless feeding in your machines, this 20 lb. printer paper reduces downtime spent waiting on maintenance. This TRU RED\u2122 8.5 x 11\" multipurpose paper is packaged in a carton of 2500 sheets for keeping up with daily demands.",
-    "bullets": [
-      "Multipurpose printer paper, brighter for black & white and color printing",
-      "Paper weight: 20 lbs.",
-      "Sheet Dimension: 8.5W\" x 11\"L (US Letter)",
-      "Brightness rating of 96 for sharp, clear print results",
-      "White paper with a Matte finish",
-      "500 sheets per ream, 5 reams per carton, 2500 sheets total",
-      "Paper is acid-free to prevent crumbling or yellowing",
-      "Meets or exceeds FSC standard",
-      "Engineered to prevent jamming",
-      "Designed for laser and inkjet printers",
-      "Packaging may vary",
-      "Features ColorLok\u00ae Technology"
-    ]
-  },
-  "specifications": {
-    "environmental": {
-      "EcoID": "Yes, product meets Staples criteria for environmental features to earn the Eco-ID mark. Learn more at EcoIDProgram.com",
-      "Forest Stewardship Council certified": "Yes"
-    },
-    "features": {
-      "Brightness": "96",
-      "Hole Punched": "No",
-      "Copy & Printer Paper Finish": "Matte"
-    },
-    "quantity": {
-      "Sheets Per Ream or Pack": "500",
-      "Selling Quantity": "1",
-      "Total Number of Sheets": "2500",
-      "Selling Quantity (UOM)": "Carton",
-      "Sheet Quantity": "1500 to 4999",
-      "Number of Reams": "5-Ream"
-    },
-    "size & weight": {
-      "Paper Weight (lbs.)": "20",
-      "Paper GSM": "75",
-      "Width in Inches": "8.5",
-      "Bond Paper Weight (lbs.)": "20",
-      "Length in Inches": "11",
-      "Sheet Dimension": "8.5\" x 11\" (US letter)"
-    },
-    "type": {
-      "Paper Type": "Multipurpose",
-      "Color Family": "White",
-      "Acid Free": "Acid Free",
-      "True Color": "White"
-    },
-    "additional details": {
-      "Next Day Delivery": "Yes"
-    }
-  }
-}
\ No newline at end of file
diff --git a/examples/product_taxonomy_knowledge_graph/crawled_products/product_15.json b/examples/product_taxonomy_knowledge_graph/crawled_products/product_15.json
deleted file mode 100644
index fd11a810..00000000
--- a/examples/product_taxonomy_knowledge_graph/crawled_products/product_15.json
+++ /dev/null
@@ -1,99 +0,0 @@
-{
-  "source": "https://www.staples.com/HP-LaserJet-Pro-M501dn-Mono-Laser-Printer/product_2102739",
-  "title": "HP LaserJet Pro M501dn Black & White Laser Printer, Single-Function, Print (J8H61A#BGJ)",
-  "price": "$759.99",
-  "highlights": [],
-  "description": {
-    "header": "Put impressive print speeds to work in your office with the HP LaserJet Pro M501dn\u2014duplex printing and built-in security features keep your business running smoothly.",
-    "paragraph": "Print faster than ever before with the LaserJet Pro M501dn. With print speeds of 45 pages per minute (ppm), and double-sided speeds of 36 images per minute, this HP black and white laser printer won't keep you waiting. You can be confident that your office will stay productive with wake and print speeds as quick as 7.3 seconds and 65 A5 pages per minute. Not only does this HP LaserJet printer feature an energy-efficient sleep mode, it's also ENERGY STAR, Blue Angel and EPEAT Silver certified to save power at every turn.",
-    "bullets": [
-      "FINISH TASKS FAST AND CONSERVE ENERGY \u2013 Gain impressive print speeds and performance. This energy-saving HP LaserJet printer starts faster and offers security features that help guard against threats",
-      "OUR MOST POWERFUL PRINTING APP EVER \u2013 The HP Smart app allows you to scan documents with your camera and print from social media or the cloud, such as iCloud, Google Drive, and Dropbox",
-      "STAY CONNECTED WITH EASY MOBILE PRINTING OPTIONS \u2013 Keep your business nimble when needs shift\u2014print in the office or on the go with Apple AirPrint, the HP Smart app, and more",
-      "PERFECT FOR THE OFFICE \u2013 Get up to 45 pages per minute black. Recommended monthly volume of 1,500-6,000 pages.",
-      "DIMENSIONS \u2013 Minimum dimensions: 16.46\" W x 14.80\" D x 11.38\" H Maximum dimensions: 16.46\" W x 25.16\" D x 11.38\" H",
-      "WIDE RANGE OF PAPER SUPPORT \u2013\u00a0This HP LaserJet printer works with: 4 x 6 \", 5 x 8\", Letter, Legal, Executive, Oficio 8.5 x 13\", Envelope No. 10, Monarch, Custom",
-      "ENVIRONMENTALLY FRIENDLY \u2013 This HP black and white laser printer is ENERGY STAR, Blue Angel, and EPEAT Silver certified",
-      "EASILY CONTROL YOUR LASER PRINTER \u2013 Manage tasks with the 2-line LCD screen, buttons, and 12 key numerical keypad",
-      "ONE-YEAR LIMITED HARDWARE WARRANTY \u2013 24-hour, 7 days a week Web support",
-      "WHAT'S IN THE BOX \u2013 J8H61A HP LaserJet Pro M501dn; 4 preinstalled introductory HP 87A LaserJet toner cartridges; Installation, Getting Started, User, and Warranty Guides; Software CDs; Power cord",
-      "QUALITY YOU TRUST FOR EVERY PROJECT \u2013 Trust HP to deliver professional-quality performance, with fast printing from sleep mode, print speeds of up to 45 pages per minute, and high-quality prints",
-      "Uses HP 87 cartridges",
-      "Safety Data Sheet"
-    ]
-  },
-  "specifications": {
-    "*key specs": {
-      "Family Model #": "M501dn",
-      "Touch Screen Display": "No",
-      "Types of Display": "LCD",
-      "Printer Condition": "New",
-      "Supertank": "Standard",
-      "Printer Function": "Single-Function",
-      "Printer Type": "Laser",
-      "Series or Collection": "LaserJet Pro",
-      "Printer Use": "Office Business",
-      "What's in the Printer Box": "M501dn; Toner cartridge; In-box documentation; Printer documentation and software on CD-ROM; Software drivers and documentation on CD-ROM; Power cord",
-      "Printer Capability": "Print"
-    },
-    "connectivity": {
-      "Wireless Ready": "Wired",
-      "Mobile Device Printing": "Mobile Device Printing Eligible",
-      "Media Types Supported": "Paper (plain, light, bond, recycled, mid-weight, heavy, extra heavy, glossy, cardstock), HP matte, HP soft gloss, HP glossy",
-      "Mobile Printing Apps": "HP ePrint; Apple AirPrint; Mopria-certified",
-      "Printer Connectivity": "USB & Network Ready",
-      "Network Ready": "Yes"
-    },
-    "copy, scan, fax features": {
-      "Black & White Copy Resolution (Up to)": "600 x 600 dpi"
-    },
-    "dimensions": {
-      "Weight (lbs.)": "25.6",
-      "Width in Inches": "16.46",
-      "Height in Inches": "11.38",
-      "Depth in Inches": "25.16"
-    },
-    "environmental": {
-      "EPEAT verified": "EPEAT Silver verified",
-      "ENERGY STAR certified": "Yes",
-      "EcoID": "Yes, product meets Staples criteria for environmental features to earn the Eco-ID mark. Learn more at EcoIDProgram.com"
-    },
-    "output": {
-      "Output Type": "Black & White",
-      "Printer Output Capacity": "250 sheets",
-      "Maximum Printer Monthly Duty Cycle": "100,000 pages"
-    },
-    "paper": {
-      "Paper Input Capacity": "650 sheets",
-      "Black & White First Page Out (seconds)": "7.3",
-      "Standard Number of Paper Trays": "2",
-      "Automatic Document Feeder (ADF)": "No",
-      "Maximum Number of Paper Trays": "3",
-      "Printer Max Paper Size": "8.5\" x 14\" Legal",
-      "Supported Paper Sizes": "3 x 5 to 8.5 x 14 in"
-    },
-    "print features": {
-      "Black & White Print Speed": "41 PPM & Up",
-      "Photo Capable": "Not Photo",
-      "Wide Format Compatibility": "No",
-      "Noise Level (decibels)": "54",
-      "Recommended Monthly Print Volume": "1500-6000",
-      "Double Sided Printing": "Automatic",
-      "Monthly Printer Volume": "2501+ Pages"
-    },
-    "warranty": {
-      "Printer Warranty": "1 Year Limited"
-    },
-    "additional details": {
-      "Printer Language": "HP PCL 5, HP PCL 6, HP postscript level 3 emulation, direct PDF (v 1.7) printing, URF, PCLM, PWG",
-      "Number of Users": "16+ Users",
-      "Printer System Requirements": "Microsoft Windows All versions and Mac OS",
-      "Operating Temperature Range": "59 to 90.5\u00baF",
-      "Printer Processor": "1500 MHz",
-      "Printer Memory": "256 MB",
-      "Operating Humidity Range": "30 to 70% RH",
-      "True Color": "White",
-      "Printer Portability": "Standard"
-    }
-  }
-}
\ No newline at end of file
diff --git a/examples/product_taxonomy_knowledge_graph/crawled_products/product_1880.json b/examples/product_taxonomy_knowledge_graph/crawled_products/product_1880.json
deleted file mode 100644
index c8401c07..00000000
--- a/examples/product_taxonomy_knowledge_graph/crawled_products/product_1880.json
+++ /dev/null
@@ -1,29 +0,0 @@
-{
-  "source": "https://www.staples.com/first-aid-only-emergency-blanket-21-005-b502/product_71279",
-  "title": "First Aid Only Emergency Blanket (21-005/B502)",
-  "price": "$5.09",
-  "highlights": [
-    "(1)Aluminized Thermal Rescue Blanket, 84\" Length x 52\" Width",
-    "One aluminized thermal rescue blanket",
-    "Perfect for standalone first aid or as a refill for a kit"
-  ],
-  "description": {
-    "header": "One aluminized thermal rescue blanket.",
-    "paragraph": "Aluminized Rescue Blanket, 1 Per Box",
-    "bullets": [
-      "(1)Aluminized Thermal Rescue Blanket, 84\" Length x 52\" Width",
-      "One aluminized thermal rescue blanket",
-      "Perfect for standalone first aid or as a refill for a kit",
-      "Measures 84-inches length by 52-inches width"
-    ]
-  },
-  "specifications": {
-    "unknown category": {
-      "Number of People Served": "1",
-      "Selling Quantity": "1",
-      "Number of Pieces": "1",
-      "Emergency Supply Type": "Emergency Blanket",
-      "Selling Quantity (UOM)": "Each"
-    }
-  }
-}
\ No newline at end of file
diff --git a/examples/product_taxonomy_knowledge_graph/crawled_products/product_191.json b/examples/product_taxonomy_knowledge_graph/crawled_products/product_191.json
deleted file mode 100644
index e8497761..00000000
--- a/examples/product_taxonomy_knowledge_graph/crawled_products/product_191.json
+++ /dev/null
@@ -1,47 +0,0 @@
-{
-  "source": "https://www.staples.com/camelbak-eddy-kids-water-bottle-biking-dogs-12-oz-2665107035/product_24548572",
-  "title": "CamelBak Eddy + Kids Water Bottle, Biking Dogs, 12 Oz. (2665107035)",
-  "price": "$24.99",
-  "highlights": [
-    "Durable, spillproof, leakproof water bottle will keep kid's water colder for longer",
-    "Dimensions: 6.5\"H x 4.25\"W x 3\"D; capacity: 12 oz.",
-    "Made of stainless steel with a durable powder coat finish and an adorable multicolor Biking Dogs design"
-  ],
-  "description": {
-    "paragraph": "Keep kid's water cool all day in this CamelBak Eddy + Kids durable, spillproof, leakproof water bottle. This child-size bottle provides grown-up features such as a vacuum-insulated stainless steel design engineered to keep water sippable for the whole school day or weekend adventure. This versatile, rugged hydration pal goes everywhere the young adventurer goes: kids can easily carry their water bottle between classes and along the trail using the convenient, comfortable carry handle. Plus, their backpack or lunchbox will stay dry thanks to sweatproof insulation. Simple sipping with no tipping: just flip, bite, and sip.",
-    "bullets": [
-      "Durable, spillproof, leakproof water bottle will keep kid's water colder for longer",
-      "Dimensions: 6.5\"H x 4.25\"W x 3\"D; capacity: 12 oz.",
-      "Made of stainless steel with a durable powder coat finish and an adorable multicolor Biking Dogs design",
-      "Vacuum-insulated to keep drinks chilled",
-      "Spillproof when open and leakproof when closed: no more soggy backpacks",
-      "Simple sipping with no tipping: just flip, bite, and sip through the built-in straw",
-      "Kids can easily carry their water bottle between classes and along the trail using the convenient, comfortable carry handle",
-      "Dishwasher safe and free of BPA, BPS, and BPF",
-      "Recommended for kids ages three and up",
-      "Fits most cupholders",
-      "Lifetime manufacturer limited warranty"
-    ]
-  },
-  "specifications": {
-    "unknown category": {
-      "BPA Free": "BPA Free",
-      "Warranty Information": "Limited Lifetime Warranty",
-      "Water Bottle, Tumbler & Mug Pattern": "Animal",
-      "Capacity (in ounces)": "12",
-      "Exact Design": "Biking Dogs",
-      "Age Group": "Youth",
-      "True Color": "Biking Dogs",
-      "Series or Collection": "Eddy + Kids",
-      "# of Bottles, Tumblers or Mugs Included": "1",
-      "Color Family": "Multicolor",
-      "Water Bottle, Tumbler & Mug Material": "Stainless Steel",
-      "Features": "Carry handle, buit-in straw",
-      "Selling Quantity": "1",
-      "Insulation Type": "Vacuum Insulated",
-      "Water Bottle, Tumbler & Mug Type": "Water Bottle",
-      "Care Instructions": "Dishwasher-safe",
-      "Selling Quantity (UOM)": "Each"
-    }
-  }
-}
\ No newline at end of file
diff --git a/examples/product_taxonomy_knowledge_graph/crawled_products/product_194.json b/examples/product_taxonomy_knowledge_graph/crawled_products/product_194.json
deleted file mode 100644
index 3cca19b5..00000000
--- a/examples/product_taxonomy_knowledge_graph/crawled_products/product_194.json
+++ /dev/null
@@ -1,113 +0,0 @@
-{
-  "source": "https://www.staples.com/canon-color-imageclass-lbp632cdw-wireless-color-laser-printer-5159c003/product_24556760",
-  "title": "Canon imageCLASS LBP632Cdw Wireless Color Laser Printer, Single-Function, Print (LBP632CDW)",
-  "price": "$249.99",
-  "highlights": [],
-  "description": {
-    "paragraph": "Canon Color imageCLASS's diverse features and durability give you the confidence and flexibility to print everything from beautiful photos to impressive documents at home and in your small office. The LBP632Cdw model balances speedy performance with minimal maintenance. High-capacity toner option keeps up with your printing needs and limits toner replacement interruptions. Connect this printer to a wireless network in four simple steps. Print on the go with Canon PRINT Business, Apple AirPrint, and Mopria Print Service. Features a compact design. Compatible with Windows, macOS, and ChromeOS. With smart reorders, Alexa can automatically reorder essentials like ink and toner wherever you're running low. All convenience, zero remembering.",
-    "bullets": [
-      "Wireless laser printer that balances speedy performance with minimal maintenance",
-      "Single-function printing with up to 1200 x 1200 dpi resolution ensures detailed, high-quality prints",
-      "Print speed: up to 22 ppm (black and color); recommended volume: 150-2500 pages per month",
-      "1 x USB 2.0, 1 x 10/100/1000BASE\u2010T/TX Ethernet (network), Wi\u2010Fi (802.11b/g/n), and Wi\u2010Fi Direct connectivity help enhance productivity",
-      "Dimensions: 11.3\"H x 17\"W x 16.5\"D",
-      "Types of media supported: plain paper, heavyweight paper, thin paper, recycled paper, colored paper, coated paper, envelopes, labels",
-      "1GB printer memory provides convenient, reliable printing of your most important documents",
-      "Creates two-sided documents with automatic duplex printing to help save paper",
-      "Five-line black-and-white LCD display enables easy setup and navigation",
-      "Meets or exceeds the ENERGY STAR and EPEAT Silver standards",
-      "Media sizes: A4, B5, A5, legal, letter, statement, executive, oficio, foolscap/folio, 3\" x 5\", envelopes No. 10/monarch/C5/DL; custom: from 3\" x 5\" to 8.5\" x 14\"",
-      "Print on the go with Canon PRINT Business, Apple AirPrint, and Mopria Print Service",
-      "Compatible with Windows 11/10/8.1; Windows Server 2012/2012 R2/2016/2019/2022; macOS 10.11 or later",
-      "Offers a standard 250\u2010sheet cassette and a single-sheet manual feed slot",
-      "Power consumption: 900W (max), 0.7W (sleep), 0.1W (off)",
-      "Network security: IP/MAC address filtering, IPSEC, TLS 1.3, SNMP V3.0, IEEE 802.1X, IPv4/IPv6, SMTP authentication, POP3",
-      "Comes in white and black",
-      "Compatible with Canon Ultra Fast Rendering (UFR II) printer language",
-      "Package includes: Canon LBP632Cdw printer, 067 starter cartridges (680 pages C/M/Y, 910 pages black), power cord, documentation",
-      "1-year manufacturer limited warranty"
-    ]
-  },
-  "specifications": {
-    "*key specs": {
-      "Touch Screen Display": "No",
-      "Types of Display": "LCD",
-      "Printer Condition": "New",
-      "Supertank": "Standard",
-      "Family Model #": "LBP632Cdw",
-      "Printer Use": "Home Office",
-      "What's in the Printer Box": "Canon LBP632Cdw printer, 067 starter cartridges (680 pages C/M/Y, 910 pages black), power cord, documentation",
-      "Printer Function": "Single-Function",
-      "Printer Type": "Laser",
-      "Series or Collection": "ImageCLASS",
-      "Printer Capability": "Print"
-    },
-    "connectivity": {
-      "Wireless Ready": "Wireless",
-      "Media Types Supported": "Plain paper, heavyweight paper, thin paper, recycled paper, colored paper, coated paper, envelopes, labels",
-      "Mobile Printing Apps": "Mopria Print Service, Apple AirPrint, Canon Print Business",
-      "Printer Connectivity": "USB, Wireless, Network Ready",
-      "Mobile Device Printing": "Mobile Device Printing Eligible",
-      "Network Ready": "Yes"
-    },
-    "copy, scan, fax features": {
-      "Scanner Resolution": "1200 x 1200 dpi"
-    },
-    "dimensions": {
-      "Weight (lbs.)": "35.3",
-      "Width in Inches": "17",
-      "Height in Inches": "11.3",
-      "Depth in Inches": "16.5"
-    },
-    "environmental": {
-      "ENERGY STAR certified": "Yes",
-      "EcoID": "Yes, product meets Staples criteria for environmental features to earn the Eco-ID mark. Learn more at EcoIDProgram.com"
-    },
-    "output": {
-      "Printer Output Capacity": "100 sheets",
-      "Output Type": "Color"
-    },
-    "paper": {
-      "Supported Paper Sizes": "A4, B5, A5, legal, letter, statement, executive, oficio, foolscap/folio, 3\" x 5\", envelopes No. 10/monarch/C5/DL; custom: from 3\" x 5\" to 8.5\" x 14\"",
-      "Color First Page Out (seconds)": "10.3",
-      "Reversing Automatic Document Feeder (RADF)": "Yes",
-      "Standard Number of Paper Trays": "2",
-      "Black & White First Page Out (seconds)": "10.3",
-      "Automatic Document Feeder (ADF)": "No",
-      "Paper Input Capacity": "250 sheets",
-      "Maximum Number of Paper Trays": "2",
-      "Printer Max Paper Size": "8.5\" x 14\" Legal"
-    },
-    "power": {
-      "Power Source Information": "110-127VAC, 4.2A 60Hz",
-      "Power Consumption (Watts)": "900"
-    },
-    "print features": {
-      "Photo Capable": "Not Photo",
-      "Wide Format Compatibility": "No",
-      "Borderless Printing": "No Borderless Printing",
-      "Monthly Printer Volume": "1201 - 2500 Pages",
-      "ISO Black & White Print Speed (ipm)": "22",
-      "ISO Color Print Speed (ipm)": "22",
-      "Max Print Resolution (dpi)": "1200 DPI",
-      "Double Sided Printing": "Automatic",
-      "Recommended Monthly Print Volume": "2,500 Pages",
-      "Black & White Print Speed": "21 to 30 PPM",
-      "Color Print Speed": "21 to 30 PPM"
-    },
-    "warranty": {
-      "Printer Warranty": "1 Year Limited"
-    },
-    "additional details": {
-      "True Color": "White/Black",
-      "Ink Subscription Service": "No",
-      "Printer Memory": "1GB (shared)",
-      "Number of Users": "6-10 Users",
-      "Operating Temperature Range": "50-86 degrees Fahrenheit",
-      "Printer Language": "Canon Ultra Fast Rendering (UFR II)",
-      "Printer Portability": "Standard",
-      "Printer System Requirements": "Windows 11/10/8.1; Windows Server 2012/2012 R2/2016/2019/2022; macOS 10.11 or later",
-      "Operating Humidity Range": "20-80% RH (noncondensing)"
-    }
-  }
-}
\ No newline at end of file
diff --git a/examples/product_taxonomy_knowledge_graph/crawled_products/product_424.json b/examples/product_taxonomy_knowledge_graph/crawled_products/product_424.json
deleted file mode 100644
index f7e5fd11..00000000
--- a/examples/product_taxonomy_knowledge_graph/crawled_products/product_424.json
+++ /dev/null
@@ -1,63 +0,0 @@
-{
-  "source": "https://www.staples.com/hp-office20-multipurpose-paper-8-5-x-11-20-lbs-white-500-sheets-ream-10-reams-carton-hpc8511/product_382692",
-  "title": "HP Office20 Multipurpose Paper, 8.5\" x 11\", 20 lbs., White, 500 Sheets/Ream, 10 Reams/Carton (HPC8511)",
-  "price": "$79.19",
-  "highlights": [],
-  "description": {
-    "header": "Keep your printer going throughout the workday with this carton of HP 8.5\" x 11\" office paper.",
-    "paragraph": "Load up copiers, printers and fax machines with this HP office paper. The matte finish and bright white color lend a professional look to your documents, and the smooth construction runs through printing machines seamlessly. This HP office paper comes in a sturdy 20-pound paper weight, providing a perfect solution for printing daily reports, business forms and important memos.",
-    "bullets": [
-      "Ideal for high volume printing and copying of everyday business documents",
-      "Paper weight: 20 lbs.; 50.8 lb. Text",
-      "Sheet dimensions: 8.5\" x 11\" (US letter)",
-      "Brightness rating: 92",
-      "Smooth finish",
-      "5000 sheets per carton",
-      "Acid Free",
-      "Color: White",
-      "FSC Certified",
-      "Technical Data Sheet"
-    ]
-  },
-  "specifications": {
-    "environmental": {
-      "EcoID": "Yes, product meets Staples criteria for environmental features to earn the Eco-ID mark. Learn more at EcoIDProgram.com",
-      "Forest Stewardship Council certified": "Yes"
-    },
-    "features": {
-      "Opacity": "88",
-      "Copy & Printer Paper Finish": "Smooth",
-      "Hole Punched": "No",
-      "Caliper (Point)": "4",
-      "Brightness": "92"
-    },
-    "quantity": {
-      "Selling Quantity": "1",
-      "Total Number of Sheets": "5000",
-      "Sheet Quantity": "5000 and Above",
-      "Selling Quantity (UOM)": "Carton",
-      "Sheets Per Ream or Pack": "5000",
-      "Number of Reams": "10-Ream"
-    },
-    "size & weight": {
-      "Paper Weight (lbs.)": "20",
-      "Paper GSM": "75",
-      "Width in Inches": "8.5",
-      "Bond Paper Weight (lbs.)": "20",
-      "Length in Inches": "11",
-      "Text Paper Weight (lbs.)": "50.8",
-      "Sheet Dimension": "8.5\" x 11\" (US letter)"
-    },
-    "type": {
-      "Paper Type": "Multipurpose",
-      "Color Family": "White",
-      "Acid Free": "Acid Free",
-      "True Color": "White"
-    },
-    "additional details": {
-      "Series or Collection": "Office20",
-      "Next Day Delivery": "Yes",
-      "Cotton Content %": "0"
-    }
-  }
-}
\ No newline at end of file
diff --git a/examples/product_taxonomy_knowledge_graph/crawled_products/product_45.json b/examples/product_taxonomy_knowledge_graph/crawled_products/product_45.json
deleted file mode 100644
index 6345bc64..00000000
--- a/examples/product_taxonomy_knowledge_graph/crawled_products/product_45.json
+++ /dev/null
@@ -1,47 +0,0 @@
-{
-  "source": "https://www.staples.com/Staples-Value-Pack-w-16-rolls-of-tape-and-Dispenser/product_518718",
-  "title": "Staples\u00ae Value Pack w/ 16 rolls of tape and Dispenser",
-  "price": "$28.79",
-  "highlights": [
-    "PACKAGING MAY VARY, SAME GREAT PRODUCT",
-    "Clear tape with a sleek black finish for versatile use",
-    "Dimensions: 0.75\" W x 36 yds L per roll"
-  ],
-  "description": {
-    "header": "Staples\u00ae Clear Tape offers reliable adhesion with a sleek black finish for versatile use.",
-    "paragraph": "Ensure your projects are held together securely with Staples\u00ae Clear Tape. This tape features a 0.75-inch width and a 1-inch core, making it ideal for a variety of tasks. The black finish adds a unique touch, while the removable adhesive allows for easy repositioning without leaving residue.",
-    "bullets": [
-      "PACKAGING MAY VARY, SAME GREAT PRODUCT",
-      "Clear tape with a sleek black finish for versatile use",
-      "Dimensions: 0.75\" W x 36 yds L per roll",
-      "Removable adhesive for easy repositioning",
-      "Writable surface for labeling and notes",
-      "Not recommended for use on thermal paper",
-      "Pack includes sixteen rolls for extended use",
-      "Ideal for office, school, and home projects",
-      "Durable material ensures long-lasting adhesion",
-      "Convenient to use"
-    ]
-  },
-  "specifications": {
-    "unknown category": {
-      "Tape Pack Size": "11-20",
-      "Length (yds.)": "36",
-      "Selling Quantity (UOM)": "Pack",
-      "Number of Rolls per Pack": "16",
-      "Writable or Nonwritable": "Writable",
-      "Tape Finish": "Matte",
-      "Width in Inches": "0.75",
-      "Material of Item": "Plastic",
-      "Removable or Permanent": "Removable",
-      "Refill": "No",
-      "Dispenser Included": "Dispenser Included",
-      "Tape Type": "Invisible",
-      "Selling Quantity": "1",
-      "Next Day Delivery": "Yes",
-      "Tape Refill Type": "Refillable Dispenser",
-      "True Color": "Black",
-      "Core Diameter (Inches)": "1"
-    }
-  }
-}
\ No newline at end of file
diff --git a/examples/product_taxonomy_knowledge_graph/crawled_products/product_465.json b/examples/product_taxonomy_knowledge_graph/crawled_products/product_465.json
deleted file mode 100644
index 67ffab66..00000000
--- a/examples/product_taxonomy_knowledge_graph/crawled_products/product_465.json
+++ /dev/null
@@ -1,66 +0,0 @@
-{
-  "source": "https://www.staples.com/jansport-cool-student-backpack-black-js0a2sdd008/product_2091683",
-  "title": "JanSport Cool Student Backpack, Black (JS0A2SDD008)",
-  "price": "$59.99",
-  "highlights": [
-    "Backpack",
-    "Black",
-    "Laptop Compatible, 13.4\" x 11.8\" x 1\""
-  ],
-  "description": {
-    "header": "Keep important homework projects, a laptop, and other items in one place with this JanSport Cool Student black backpack.",
-    "paragraph": "Bring assignments, books, and other items on the go with this black backpack. Featuring an internal sleeve, this backpack provides enough space for a 15-inch laptop, while the side water bottle pocket helps keep you hydrated as you go from class to class. The fully padded back panel and ergonomic S-curve shoulder straps offer enhanced comfort, making it easy to walk long distances while carrying a heavy load. Made with premium materials, this backpack has increased durability, so it's a great option for long-term use. This JanSport Cool Student backpack has two main compartments as well as a pleated front pocket, providing plenty of room for various items.",
-    "bullets": [
-      "Backpack",
-      "Black",
-      "Laptop Compatible, 13.4\" x 11.8\" x 1\"",
-      "17.5\" x 13\" x 10\"",
-      "Two large main compartments.",
-      "Unisex",
-      "2100 cu in",
-      "Designed to fit a range of laptops with screens up to 15\"",
-      "Lifetime manufacturer limited warranty",
-      "Web haul handle.",
-      "Premium synthetic leather bottom and trims.",
-      "Fully padded back panel.",
-      "Side water bottle pocket.",
-      "Pleated front stash pocket.",
-      "Ergonomic S-curve shoulder straps.",
-      "Two large main compartments.",
-      "Front utility pocket with organizer.",
-      "Cord pullers.",
-      "Internal 15'' laptop sleeve."
-    ]
-  },
-  "specifications": {
-    "dimensions": {
-      "Backpack Size": "X-Large",
-      "Width in Inches": "13",
-      "Weight (lbs.)": "1.31",
-      "Depth in Inches": "10",
-      "Height in Inches": "17.5"
-    },
-    "features": {
-      "Laptop Size Compatibility": "Up to 15.9\"",
-      "Laptop Compatible": "Laptop Compatible",
-      "Rolling": "Non-Rolling"
-    },
-    "style": {
-      "True Color": "Black",
-      "Backpack Material": "Polyester",
-      "Backpack Pattern": "Solid",
-      "Color Family": "Black"
-    },
-    "warranty": {
-      "Warranty Information": "Limited Lifetime Warranty"
-    },
-    "additional details": {
-      "Age Group": "All Ages",
-      "# of Pieces per Backpack Set": "1",
-      "# of Compartments": "2",
-      "Series or Collection": "Cool Student",
-      "Selling Quantity": "1",
-      "Selling Quantity (UOM)": "Each"
-    }
-  }
-}
\ No newline at end of file
diff --git a/examples/product_taxonomy_knowledge_graph/crawled_products/product_570.json b/examples/product_taxonomy_knowledge_graph/crawled_products/product_570.json
deleted file mode 100644
index afb9be26..00000000
--- a/examples/product_taxonomy_knowledge_graph/crawled_products/product_570.json
+++ /dev/null
@@ -1,40 +0,0 @@
-{
-  "source": "https://www.staples.com/pentel-hi-polymer-eraser-white-erasers-assorted-sizes-6-pack-zeh2510bp/product_163822",
-  "title": "Pentel Hi-Polymer Eraser, White Erasers, Assorted Sizes, 6/Pack (ZEH2510BP)",
-  "price": "$8.99",
-  "highlights": [
-    "Block and Cap erasers",
-    "Hi quality LATEX-FREE eraser removes lead easily and cleanly with very little pressure",
-    "White"
-  ],
-  "description": {
-    "header": "Hi-Polymer erasers are the most popular erasers around because they not only erase cleanly, but they will not tear paper.",
-    "paragraph": "Pentel\u00ae Hi-Polymer\u00ae Eraser in assorted sizes helps to clear pencil marks in corners and cap fits into wooden case pencils. Latex-free eraser is made of high quality material and is sold as 6 per pack.",
-    "bullets": [
-      "Block and Cap erasers",
-      "Hi quality LATEX-FREE eraser removes lead easily and cleanly with very little pressure",
-      "White",
-      "Includes 4 x white cap eraser, 1 x small block eraser, 1 x large block eraser",
-      "Sold as 6/Pack",
-      "Our best selling Hi-Polymer\u00ae eraser now in a pencil cap size; fits on most wood case pencils",
-      "Non-abrasive",
-      "Doesn't crack or harden with age; remains soft and ready to use",
-      "No smudges, no paper tears and no ghosting",
-      "Block style is perfect for getting into little corners or erasing large areas quickly"
-    ]
-  },
-  "specifications": {
-    "unknown category": {
-      "Width in Inches": "2.8125",
-      "Length in Inches": "7.25",
-      "Eraser Type": "Assorted",
-      "Weight (lbs.)": "0.208",
-      "Color Family": "White",
-      "Eraser Pack Size": "3/Pack",
-      "Depth in Inches": "0.65",
-      "Next Day Delivery": "Yes",
-      "True Color": "White",
-      "Height in Inches": "7.25"
-    }
-  }
-}
\ No newline at end of file
diff --git a/examples/product_taxonomy_knowledge_graph/crawled_products/product_587.json b/examples/product_taxonomy_knowledge_graph/crawled_products/product_587.json
deleted file mode 100644
index 495082a5..00000000
--- a/examples/product_taxonomy_knowledge_graph/crawled_products/product_587.json
+++ /dev/null
@@ -1,45 +0,0 @@
-{
-  "source": "https://www.staples.com/pentel-wow-retractable-ballpoint-pens-medium-point-black-ink-dozen-bk440-a/product_612916",
-  "title": "Pentel WOW! Retractable Ballpoint Pens, Medium Point, Black Ink, Dozen (BK440-A)",
-  "price": "$8.59",
-  "highlights": [
-    "Retractable ballpoint pens for ease of use",
-    "Black ink has a rich color for excellent readability",
-    "1.0mm medium tip"
-  ],
-  "description": {
-    "header": "Fill out paperwork and write notes with this 12-pack of Pentel WOW! 1.0mm black retractable ballpoint pens.",
-    "paragraph": "Get your writing noticed with these 1.0mm black retractable ballpoint pens. The retractable design makes these pens easy to stow away without staining pockets or bags, while the cushy grips make writing more comfortable. These Pentel WOW! black retractable ballpoint pens come in a pack of 12 and feature 1.0mm tips for producing thick, bold lines that stand out.",
-    "bullets": [
-      "Retractable ballpoint pens for ease of use",
-      "Black ink has a rich color for excellent readability",
-      "1.0mm medium tip",
-      "Black barrel",
-      "One dozen pens per pack",
-      "Comfort grip for superior control",
-      "Features a pocket clip for convenient carrying",
-      "Ergonomic triangular shape",
-      "Safety Data Sheet"
-    ]
-  },
-  "specifications": {
-    "features": {
-      "Grip": "Grip",
-      "Retractable": "Yes",
-      "Erasable": "No"
-    },
-    "style": {
-      "Barrel Material": "Plastic",
-      "Pen Type": "Ballpoint",
-      "Point Type": "Medium",
-      "Pen Barrel Color": "Black",
-      "Pen Point Size": "1.0mm",
-      "Ink Color": "Black"
-    },
-    "additional details": {
-      "Series or Collection": "WOW!",
-      "Pen Pack Size": "Dozen",
-      "Next Day Delivery": "Yes"
-    }
-  }
-}
\ No newline at end of file
diff --git a/examples/product_taxonomy_knowledge_graph/crawled_products/product_750.json b/examples/product_taxonomy_knowledge_graph/crawled_products/product_750.json
deleted file mode 100644
index a78b600c..00000000
--- a/examples/product_taxonomy_knowledge_graph/crawled_products/product_750.json
+++ /dev/null
@@ -1,52 +0,0 @@
-{
-  "source": "https://www.staples.com/sharpie-permanent-markers-fine-tip-black-36-pack-1884739/product_271674",
-  "title": "Sharpie Permanent Marker, Fine Tip, Black, 36/Pack (1884739)",
-  "price": "$27.99",
-  "highlights": [
-    "Permanent markers ideal for making thin lines on metal, glass, plastics, foils, rubber, cloth and waxed paper",
-    "Fine-point tips make these markers a pleasure to use by ensuring your writing is legible and uniform",
-    "This 36-pack of permanent markers is the perfect fit for any office supply closet"
-  ],
-  "description": {
-    "header": "Sharpie fine point permanent markers write smoothly on a variety of surfaces.",
-    "paragraph": "Create a bold, vibrant impression on metal, glass, plastic or cloth with Sharpie permanent markers. The resilient, quick-drying ink is waterproof, smudge-proof and doesn't wear, so your text stays clear over time.",
-    "bullets": [
-      "Permanent markers ideal for making thin lines on metal, glass, plastics, foils, rubber, cloth and waxed paper",
-      "Fine-point tips make these markers a pleasure to use by ensuring your writing is legible and uniform",
-      "This 36-pack of permanent markers is the perfect fit for any office supply closet",
-      "Pen-style markers are comfortable to use",
-      "Fast-drying ink is waterproof, smear-proof and fade-resistant",
-      "An AP nontoxic certification makes these markers perfect for use around coworkers or children",
-      "Intensely brilliant colors create eye-popping, vibrant impressions",
-      "Remarkably resilient ink dries quickly and resists both fading and water",
-      "Endlessly versatile fine point is perfect for countless uses in the classroom, office, home and beyond",
-      "Safety Data Sheet"
-    ]
-  },
-  "specifications": {
-    "dimensions": {
-      "Length in Inches": "5.63"
-    },
-    "environmental": {
-      "ACMI AP nontoxic certified": "Yes"
-    },
-    "features": {
-      "Retractable": "No",
-      "Odorless": "No",
-      "Water Resistant": "Water Resistant",
-      "Washable": "Non Washable"
-    },
-    "style": {
-      "Barrel Style": "Pen",
-      "Marker Type": "Permanent",
-      "True Color": "Black",
-      "Marker Point Type": "Fine",
-      "Ink Color": "Black"
-    },
-    "additional details": {
-      "Marker Pack Size": "36/Pack",
-      "Pack Qty": "36",
-      "Next Day Delivery": "Yes"
-    }
-  }
-}
\ No newline at end of file
diff --git a/examples/product_taxonomy_knowledge_graph/crawled_products/product_880.json b/examples/product_taxonomy_knowledge_graph/crawled_products/product_880.json
deleted file mode 100644
index b9fbda9c..00000000
--- a/examples/product_taxonomy_knowledge_graph/crawled_products/product_880.json
+++ /dev/null
@@ -1,50 +0,0 @@
-{
-  "source": "https://www.staples.com/staples-1-subject-notebook-8-x-10-5-college-ruled-70-sheets-green-tr27502/product_1489915",
-  "title": "Staples 1-Subject Notebook, 8\" x 10.5\", College Ruled, 70 Sheets, Green (ST27502C)",
-  "price": "$3.09",
-  "highlights": [
-    "1-subject notebook is great for school, home or work projects",
-    "70 sheets of college-ruled paper for efficient use of space",
-    "Green duplex cardstock cover"
-  ],
-  "description": {
-    "header": "Take detailed notes in this Staples 8 x 10.5-inch green 1-subject notebook.",
-    "paragraph": "Keep information organized with this 1-subject notebook. The spiral binding lets you flip through pages of notes, while the college-ruled sheets offer convenient space for taking notes, writing lists or jotting down ideas. This notebook contains 70 sheets, providing an ample supply of notepaper to meet your writing needs. With its bright hue, this Staples 8 x 10.5-inch green 1-subject notebook makes it easy to color-code your subjects for easy reference.",
-    "bullets": [
-      "1-subject notebook is great for school, home or work projects",
-      "70 sheets of college-ruled paper for efficient use of space",
-      "Green duplex cardstock cover",
-      "Wirebound for added durability",
-      "3-hole punched"
-    ]
-  },
-  "specifications": {
-    "features": {
-      "Hole Punched": "Yes",
-      "Perforation": "Non-Perforated",
-      "Business Card Holder": "No",
-      "Spiral Bound": "Yes"
-    },
-    "type": {
-      "Number Sheets Per Pad": "70",
-      "Rule Type": "College",
-      "True Color": "Green",
-      "Number of Subjects": "1-Subject",
-      "Notebook Type": "Subject Notebooks",
-      "Color Family": "Green"
-    },
-    "weights & size": {
-      "Sheet Dimension": "8\" x 10.5\"",
-      "Sheet Width (Inches)": "8",
-      "Sheet Length (Inches)": "10.5",
-      "Paper Weight": "Other"
-    },
-    "additional details": {
-      "Notebook Binding": "Spiral",
-      "Selling Quantity": "1",
-      "Next Day Delivery": "Yes",
-      "Cover Material": "Other",
-      "Selling Quantity (UOM)": "Each"
-    }
-  }
-}
\ No newline at end of file
diff --git a/examples/product_taxonomy_knowledge_graph/crawled_products/product_929.json b/examples/product_taxonomy_knowledge_graph/crawled_products/product_929.json
deleted file mode 100644
index 1c471a7a..00000000
--- a/examples/product_taxonomy_knowledge_graph/crawled_products/product_929.json
+++ /dev/null
@@ -1,47 +0,0 @@
-{
-  "source": "https://www.staples.com/staples-2-3-ring-view-binder-white-st23725-cc/product_374812",
-  "title": "Staples 2\" 3-Ring View Binder, White (ST23725-CC)",
-  "price": "$10.59",
-  "highlights": [
-    "White view binder is an excellent choice for storing spreadsheets and other papers",
-    "2 inch binder",
-    "Insert a custom spine label for easy identification"
-  ],
-  "description": {
-    "header": "Store documents and notes in this Staples economy 2-inch round three-ring view white binder.",
-    "paragraph": "Use this Staples economy 2-inch round three-ring view white binder to store important papers. The covers and spine have a clear overlay that doesn't glare so you can insert your own custom labels, while the interior has two extra pockets to provide additional storage options. This Staples economy 375-sheet-capacity white view binder has easy-to-open round rings to ensure that pages turn smoothly.",
-    "bullets": [
-      "White view binder is an excellent choice for storing spreadsheets and other papers",
-      "2 inch binder",
-      "Insert a custom spine label for easy identification",
-      "Three round rings keep pages secure",
-      "Holds up to 375 sheets",
-      "Accommodates 8.5\" x 11\" letter-sized papers",
-      "Two pockets for added organization"
-    ]
-  },
-  "specifications": {
-    "color & material": {
-      "Color Family": "White",
-      "True Color": "White"
-    },
-    "dimensions & weight": {
-      "Folder or Paper Size": "8.5\" x 11\" (US letter)"
-    },
-    "features": {
-      "Binder Sheet Capacity": "300-399",
-      "# of Pockets": "2 Pocket",
-      "# of Rings": "3",
-      "Durability": "Economy"
-    },
-    "type": {
-      "Ring Size": "2\"",
-      "Ring Type": "Round Ring",
-      "Binder Type": "View Binders"
-    },
-    "additional details": {
-      "Binder Pack Size": "Each",
-      "Next Day Delivery": "Yes"
-    }
-  }
-}
\ No newline at end of file
diff --git a/examples/product_taxonomy_knowledge_graph/img/neo4j.png b/examples/product_taxonomy_knowledge_graph/img/neo4j.png
index ec7bfafa..adf7da98 100644
Binary files a/examples/product_taxonomy_knowledge_graph/img/neo4j.png and b/examples/product_taxonomy_knowledge_graph/img/neo4j.png differ
diff --git a/examples/product_taxonomy_knowledge_graph/main.py b/examples/product_taxonomy_knowledge_graph/main.py
index 7e4dde82..5413dfbe 100644
--- a/examples/product_taxonomy_knowledge_graph/main.py
+++ b/examples/product_taxonomy_knowledge_graph/main.py
@@ -38,7 +38,6 @@
 @dataclasses.dataclass
 class ProductInfo:
     id: str
-    url: str
     title: str
     price: float
     detail: str
@@ -75,7 +74,6 @@ def extract_product_info(product: cocoindex.typing.Json, filename: str) -> Produ
     # Print  markdown for LLM to extract the taxonomy and complimentary taxonomy
     return ProductInfo(
         id=f"{filename.removesuffix('.json')}",
-        url=product["source"],
         title=product["title"],
         price=float(product["price"].lstrip("$").replace(",", "")),
         detail=Template(PRODUCT_TEMPLATE).render(**product),
@@ -88,7 +86,7 @@ def store_product_flow(flow_builder: cocoindex.FlowBuilder, data_scope: cocoinde
     Define an example flow that extracts triples from files and build knowledge graph.
     """
     data_scope["products"] = flow_builder.add_source(
-        cocoindex.sources.LocalFile(path="crawled_products",
+        cocoindex.sources.LocalFile(path="products",
                                     included_patterns=["*.json"]),
         refresh_interval=datetime.timedelta(seconds=5))
 
@@ -105,7 +103,7 @@ def store_product_flow(flow_builder: cocoindex.FlowBuilder, data_scope: cocoinde
                         api_type=cocoindex.LlmApiType.OPENAI, model="gpt-4.1"),
                         output_type=ProductTaxonomyInfo))
         
-        product_node.collect(id=data["id"], url=data["url"], title=data["title"], price=data["price"])
+        product_node.collect(id=data["id"], title=data["title"], price=data["price"])
         with taxonomy['taxonomies'].row() as t:
             product_taxonomy.collect(id=cocoindex.GeneratedField.UUID, product_id=data["id"], taxonomy=t["name"])
         with taxonomy['complementary_taxonomies'].row() as t:
diff --git a/examples/product_taxonomy_knowledge_graph/products/p1.json b/examples/product_taxonomy_knowledge_graph/products/p1.json
new file mode 100644
index 00000000..0871d273
--- /dev/null
+++ b/examples/product_taxonomy_knowledge_graph/products/p1.json
@@ -0,0 +1,22 @@
+{
+    "title": "Pilot G2 Premium Gel Roller Pens, Fine Point, 0.7mm, Black Ink, 2/Pack",
+    "price": "$4.99",
+    "highlights": [
+      "Smooth-writing gel ink for effortless note-taking.",
+      "Comfortable rubber grip for long study sessions.",
+      "Refillable design reduces waste and saves money."
+    ],
+    "description": {
+      "header": "Take your writing to the next level with this 2-pack of Pilot G2 Premium Gel Roller Pens.",
+      "paragraph": "Engineered for precision and comfort, these pens are ideal for students who need reliability during long lectures and study marathons. The gel ink delivers bold, smooth lines while the ergonomic grip reduces writing fatigue.",
+      "bullets": [
+        "Smooth-writing gel ink for effortless note-taking.",
+        "Fine 0.7mm tip for precise lines and detailed writing.",
+        "Comfortable contoured rubber grip for extended use.",
+        "Refillable design for long-term value.",
+        "Sleek black barrel with visible ink supply.",
+        "Includes 2 black ink pens.",
+        "Ideal for students, professionals, and everyday writing tasks."
+      ]
+    }
+  }
\ No newline at end of file
diff --git a/examples/product_taxonomy_knowledge_graph/products/p2.json b/examples/product_taxonomy_knowledge_graph/products/p2.json
new file mode 100644
index 00000000..30be4a47
--- /dev/null
+++ b/examples/product_taxonomy_knowledge_graph/products/p2.json
@@ -0,0 +1,22 @@
+{
+    "title": "Multi-Purpose Paper, 8.5\" x 11\", 20 lbs., 92 Bright, 500 Sheets/Ream, White (SPLMPP500)",
+    "price": "$6.99",
+    "highlights": [
+      "Ideal for everyday printing and writing needs.",
+      "Compatible with laser printers, inkjet printers, and copiers.",
+      "Smooth surface ensures sharp text and vibrant images."
+    ],
+    "description": {
+      "header": "Print crisp documents with this 500-sheet ream of Staples multi-purpose paper.",
+      "paragraph": "This versatile white paper delivers reliable performance for a wide variety of printing and writing tasks. Whether you're preparing professional reports or everyday notes, the 92 brightness rating ensures high contrast and readability.",
+      "bullets": [
+        "20 lb. weight for standard document printing and copying.",
+        "8.5\" x 11\" letter size for everyday use.",
+        "92 brightness rating offers crisp, clear print results.",
+        "Compatible with laser printers, inkjet printers, and copiers.",
+        "Acid-free paper prevents yellowing over time.",
+        "Ideal for memos, reports, drafts, and more.",
+        "500 sheets per ream for bulk efficiency."
+      ]
+    }
+  }
\ No newline at end of file
diff --git a/examples/product_taxonomy_knowledge_graph/products/p3.json b/examples/product_taxonomy_knowledge_graph/products/p3.json
new file mode 100644
index 00000000..8c37201a
--- /dev/null
+++ b/examples/product_taxonomy_knowledge_graph/products/p3.json
@@ -0,0 +1,22 @@
+{
+    "title": "ProErase Ultra Clean Pencil Erasers, White, 2/Pack (PE102)",
+    "price": "$2.49",
+    "highlights": [
+      "Removes pencil marks completely with no residue or smudging.",
+      "Soft texture minimizes paper damage during erasing.",
+      "Ideal for precision erasing with clean, sharp edges."
+    ],
+    "description": {
+      "header": "Erase pencil marks effortlessly with this 2-pack of ProErase Ultra Clean Pencil Erasers.",
+      "paragraph": "Designed for clean and complete erasing, ProErase Ultra Clean Erasers lift graphite from paper without tearing or leaving smudges. The soft rubber composition ensures a smooth erasing experience every time.",
+      "bullets": [
+        "Removes pencil marks completely with no residue or smudging.",
+        "Soft rubber material for gentle, precise erasing.",
+        "No retention—graphite is fully lifted with one pass.",
+        "Comfortable size for everyday use in school, office, or home.",
+        "Great for artists, students, and professionals.",
+        "Includes 2 white erasers per pack.",
+        "Dimensions: 2\" x 0.75\" x 0.4\" each."
+      ]
+    }
+  }
\ No newline at end of file
diff --git a/examples/product_taxonomy_knowledge_graph/products/p4.json b/examples/product_taxonomy_knowledge_graph/products/p4.json
new file mode 100644
index 00000000..949901e6
--- /dev/null
+++ b/examples/product_taxonomy_knowledge_graph/products/p4.json
@@ -0,0 +1,22 @@
+{
+    "title": "Premium Spiral Notepad, A5 Size, 100 Pages, College Ruled, Hard Cover",
+    "price": "$12.99",
+    "highlights": [
+      "Durable hard cover protects your notes.",
+      "College-ruled pages for organized writing.",
+      "Spiral binding allows for easy page turning."
+    ],
+    "description": {
+      "header": "Stay organized with this premium spiral-bound notepad, perfect for students and professionals.",
+      "paragraph": "This high-quality notepad combines durability with functionality. The hard cover provides protection for your notes, while the college-ruled pages help maintain neat, organized writing. The spiral binding ensures pages lay flat and turn smoothly.",
+      "bullets": [
+        "Durable hard cover protects your notes from wear and tear.",
+        "100 college-ruled pages for organized writing.",
+        "Spiral binding allows for easy page turning and flat writing surface.",
+        "A5 size (5.8\" x 8.3\") for perfect portability.",
+        "Premium quality paper prevents ink bleed-through.",
+        "Back pocket for storing loose papers and documents.",
+        "Ideal for students, professionals, and everyday note-taking."
+      ]
+    }
+} 
\ No newline at end of file
diff --git a/examples/product_taxonomy_knowledge_graph/products/p5.json b/examples/product_taxonomy_knowledge_graph/products/p5.json
new file mode 100644
index 00000000..b10dd55b
--- /dev/null
+++ b/examples/product_taxonomy_knowledge_graph/products/p5.json
@@ -0,0 +1,22 @@
+{
+    "title": "Professional Magnetic Whiteboard, 4' x 6', Aluminum Frame, Magnetic Surface",
+    "price": "$129.99",
+    "highlights": [
+      "Magnetic surface for versatile presentation options.",
+      "Aluminum frame with corner bumpers for durability.",
+      "Easy-clean surface resists ghosting and staining."
+    ],
+    "description": {
+      "header": "Transform your workspace with this professional-grade magnetic whiteboard.",
+      "paragraph": "This premium whiteboard combines functionality with durability. The magnetic surface allows you to attach documents and notes, while the high-quality writing surface ensures smooth writing and easy erasing. The aluminum frame with corner bumpers provides both style and protection, making it perfect for offices, classrooms, and meeting rooms.",
+      "bullets": [
+        "Large 4' x 6' magnetic surface for maximum workspace.",
+        "Aluminum frame with protective corner bumpers.",
+        "Easy-clean surface resists ghosting and staining.",
+        "Includes mounting hardware and installation guide.",
+        "Compatible with all standard dry-erase markers.",
+        "Hidden tray for marker and eraser storage.",
+        "Perfect for offices, classrooms, and meeting rooms."
+      ]
+    }
+}
diff --git a/examples/product_taxonomy_knowledge_graph/products/p6.json b/examples/product_taxonomy_knowledge_graph/products/p6.json
new file mode 100644
index 00000000..b5f149a3
--- /dev/null
+++ b/examples/product_taxonomy_knowledge_graph/products/p6.json
@@ -0,0 +1,22 @@
+{
+    "title": "GravityLite MaxExpand Smart Backpack for Students, Ultra-Light, High-Capacity, Ergonomic Design (GLX-2025)",
+    "price": "$119.99",
+    "highlights": [],
+    "description": {
+      "header": "The smart backpack that carries more while feeling like less.",
+      "paragraph": "The GravityLite MaxExpand is a next-generation backpack designed specifically for students, blending cutting-edge lightweight materials with optical load redistribution. Its ExpandX core structure allows up to 4x interior expansion, making it perfect for books, laptops, gym gear, and even lunch containers—without the bulk. Despite its capacity, the GravityLite feels 50% lighter when worn, thanks to our patented GravityDiffusion™ suspension system that redistributes weight away from the shoulders. With weatherproof tech-fabric, a built-in tablet sleeve, USB-C pass-through charging port, and reflective safety strips, this backpack is built for modern student life with all-day comfort.",
+      "bullets": [
+        "Optical capacity design — holds up to 4x more than it appears, perfect for heavy school days or extracurricular gear",
+        "Feels 50% lighter when carried — GravityDiffusion™ system disperses load ergonomically to minimize shoulder and back strain",
+        "Ultra-light yet durable — weighs under 1.5 lbs thanks to aerospace-grade fabric with weatherproof nano-coating",
+        "Built-in tech sleeve — padded compartment fits tablets and laptops up to 16\"",
+        "Power on the go — internal cable routing and USB-C pass-through for easy device charging while walking",
+        "Reflective detailing — 360-degree visibility for enhanced safety during early mornings or late commutes",
+        "Smart organization — multiple internal compartments including an insulated lunch zone and quick-access mesh pouches",
+        "Eco-aware build — constructed from 70% recycled polymer fiber with zero single-use plastic packaging",
+        "Expandable side pockets — hold water bottles, umbrellas, or even a small lunch box",
+        "Two-year limited warranty — includes zipper and strap protection, plus access to our dedicated support center",
+        "Safety & Ergonomics Certified — lab-tested for spinal load distribution, child ergonomics, and non-toxic material compliance"
+      ]
+    }
+  }
\ No newline at end of file
diff --git a/examples/product_taxonomy_knowledge_graph/products/p7.json b/examples/product_taxonomy_knowledge_graph/products/p7.json
new file mode 100644
index 00000000..83a72d0a
--- /dev/null
+++ b/examples/product_taxonomy_knowledge_graph/products/p7.json
@@ -0,0 +1,26 @@
+{
+    "title": "AquaFloat Ultra-Light Water Bottle, 24oz, Rose Gold Pink, Vacuum Insulated (AF-2024)",
+    "price": "$29.99",
+    "highlights": [
+      "Ultra-lightweight design at just 8.5oz empty weight.",
+      "Double-wall vacuum insulation keeps drinks cold for 24 hours.",
+      "Eco-friendly construction with 100% recyclable materials."
+    ],
+    "description": {
+      "header": "Stay hydrated in style with the feather-light AquaFloat water bottle.",
+      "paragraph": "The AquaFloat Ultra-Light combines elegant design with cutting-edge technology. Its aerospace-grade aluminum construction makes it incredibly lightweight while maintaining durability. The rose gold pink finish adds a touch of sophistication, while the double-wall vacuum insulation ensures your drinks stay at the perfect temperature. Perfect for students, professionals, and fitness enthusiasts who value both style and functionality.",
+      "bullets": [
+        "Ultra-lightweight design — weighs only 8.5oz when empty, making it perfect for daily carry",
+        "Double-wall vacuum insulation — keeps drinks cold for 24 hours and hot for 12 hours",
+        "Elegant rose gold pink finish — scratch-resistant coating that maintains its shine",
+        "Leak-proof design — one-handed operation with secure locking mechanism",
+        "Wide mouth opening — easy to fill, clean, and add ice cubes",
+        "BPA-free construction — made from food-grade materials for safe drinking",
+        "Eco-friendly — 100% recyclable and made from 70% recycled materials",
+        "Comfortable grip — ergonomic design with non-slip surface",
+        "Fits standard cup holders — perfect for car, bike, or gym equipment",
+        "Lifetime warranty — covers manufacturing defects and normal wear and tear",
+        "Safety certified — meets FDA and international food safety standards"
+      ]
+    }
+}
\ No newline at end of file
diff --git a/examples/product_taxonomy_knowledge_graph/products/p8.json b/examples/product_taxonomy_knowledge_graph/products/p8.json
new file mode 100644
index 00000000..6c1375ff
--- /dev/null
+++ b/examples/product_taxonomy_knowledge_graph/products/p8.json
@@ -0,0 +1,21 @@
+{
+    "title": "Solaris Student Laptop, Solar Powered, Privacy Screen, Lightweight (Model SL2025)",
+    "price": "$1349.00",
+    "highlights": [
+      "Solar-powered laptop designed for students",
+      "Built-in privacy screen to protect sensitive information",
+      "Lightweight and compact, ideal for backpacks"
+    ],
+    "description": {
+      "header": "Stay productive anywhere with the Solaris Student Laptop — solar-powered, privacy-enhanced, and built for mobility.",
+      "paragraph": "Designed for on-the-go learners, the Solaris SL2025 combines sustainable power and security in a slim form. Its integrated solar panel allows for charging outdoors or near windows, while a built-in privacy screen ensures your work stays confidential. The laptop is lightweight but delicate, making it perfect for carrying in a protective backpack sleeve. Ideal for students who value independence, security, and eco-friendly technology.",
+      "bullets": [
+        "Solar-powered student laptop with USB-C backup charging option",
+        "11.6-inch anti-glare display with built-in privacy filter",
+        "Ultra-light chassis weighing under 2.5 lbs",
+        "Pre-installed educational software and parental controls",
+        "Comes with protective soft case for safe transport in backpacks",
+        "Ideal for outdoor study, remote learning, and low-energy environments"
+      ]
+    }
+  }
\ No newline at end of file
diff --git a/examples/product_taxonomy_knowledge_graph/products/p9.json b/examples/product_taxonomy_knowledge_graph/products/p9.json
new file mode 100644
index 00000000..d4d2d3f6
--- /dev/null
+++ b/examples/product_taxonomy_knowledge_graph/products/p9.json
@@ -0,0 +1,21 @@
+{
+    "title": "SuperFast Laser Printer X100, Monochrome, 10 Pages Per Second",
+    "price": "$249.99",
+    "highlights": [
+      "High-speed monochrome laser printer for efficient document handling",
+      "Prints up to 10 pages per second",
+      "Ideal for offices and high-volume printing environments"
+    ],
+    "description": {
+      "header": "Boost your productivity with the SuperFast Laser Printer X100, capable of printing 10 pages every second.",
+      "paragraph": "Designed for busy office environments, the SuperFast X100 laser printer delivers crisp, monochrome prints at an incredible speed of 10 pages per second. Its compact footprint and robust build make it a perfect choice for space-conscious setups. With easy connectivity options and low maintenance requirements, this printer helps streamline your workflow and reduce downtime.",
+      "bullets": [
+        "High-speed printing at 10 pages per second",
+        "Monochrome laser printing for professional-quality text",
+        "Perfect for office and enterprise use",
+        "Durable design supports high-volume workloads",
+        "Supports USB and Ethernet connectivity",
+        "Compact design fits neatly on any workstation"
+      ]
+    }
+  }
\ No newline at end of file