Add a (wikidata) example to /sameAs

[danbri]

Let's use Douglas Adams, @vrandezo

  "@type": "Movie",
  "name": "The Hitchhiker's Guide to the Galaxy",
  "disambiguatingDescription": "2005 British-American comic science fiction film directed by Garth Jennings",
  "sameAs": "https://www.wikidata.org/wiki/Q836821",
  "titleEIDR": "10.5240/B752-5B47-DBBE-E5D4-5A3F-N",
  "isBasedOn":
  { 
    "@type": "Book",
    "name": "The Hitchhiker's Guide to the Galaxy",
    "isbn": "0-330-25864-8",
    "sameAs": "https://www.wikidata.org/wiki/Q3107329",
    "author": 
    {
      "@type": "Person",
      "name": "Douglas Adams",
      "sameAs": "https://www.wikidata.org/wiki/Q42"
    }
  }
}
```

(this also uses draft EIDR property; I'm suggesting for that /workEIDR and /editEIDR, see #2469)

[danbri]

I'm trying to work through how this relates to EIDR in #2469. There are some complications.

Example 1 - work/title level

This example talks about the movie in its most abstract general sense first, mentioning a wikidata sameAs link, a titleEIDR, and its name and a disambiguatingDescription. It then lists 4 specific edits with eidrEIDR and disambiguatingDescription for each.

{
"@type": "Movie",
  "name": "The Hitchhiker's Guide to the Galaxy",
  "disambiguatingDescription": "2005 British-American comic science fiction film directed by Garth Jennings",
  "sameAs": "https://www.wikidata.org/wiki/Q836821",
  "titleEIDR": "10.5240/B752-5B47-DBBE-E5D4-5A3F-N",
  "workExample": [ {
    "@type": "Movie",
    "editEIDR": "10.5240/0196-4177-FF62-A346-D0F6-Z",
    "disambiguatingDescription": "VUDU version"
   },
    "@type": "Movie",
    "editEIDR": "10.5240/043D-15C4-838D-80F4-E96A-G",
    "disambiguatingDescription": "Censored for India"
   },
    "@type": "Movie",
    "editEIDR": "10.5240/7BAD-7B81-396E-27EF-360F-N",
    "disambiguatingDescription": "Theatrical"
   },
    "@type": "Movie",
    "editEIDR": "0.5240/1DC4-B3E4-ECEB-7197-BF18-B",
    "disambiguatingDescription": "Broadcast"
   }
  ],
  "isBasedOn":
  { 
    "@type": "Book",
    "name": "The Hitchhiker's Guide to the Galaxy",
    "isbn": "0-330-25864-8",
    "sameAs": "https://www.wikidata.org/wiki/Q3107329",
    "author": 
    {
      "@type": "Person",
      "name": "Douglas Adams",
      "sameAs": "https://www.wikidata.org/wiki/Q42"
    }
  }
}

Example 2 - edit(ion) level

This example is all about a specific edition ("expression" in FRBR terminology). Therefore to
provide information (such as a work sameAs link) we need to
describe the work as a different entity (here via exampleOfWork).

{
  "@type": "Movie",
  "name": "The Hitchhiker's Guide to the Galaxy",
  "titleEIDR": "10.5240/B752-5B47-DBBE-E5D4-5A3F-N",
  "editEIDR": "10.5240/0196-4177-FF62-A346-D0F6-Z",
  "disambiguatingDescription": "VUDU version",
  "exampleOfWork": 
    {
       "@type": "Movie",
         "sameAs": "https://www.wikidata.org/wiki/Q836821",
    }
  }
}

[RichardWallis]

Being pedantic shouldn't the Wikidata uri be http://www.wikidata.org/entity/Q3107329 not https://www.wikidata.org/wiki/Q3107329

[philbarker]

@RichardWallis definition for sameAs says it's the "URL of a reference Web page..." so it should be /wiki/ URL not the /entity/

[RichardWallis]

Note to self: RTFM

[akuckartz]

@philbarker But where is "Web page" defined ?

[github-actions]

This issue is being tagged as Stale due to inactivity.

[RichardWallis]

Shipped in V11.0 release.

[ziodave]

@RichardWallis definition for sameAs says it's the "URL of a reference Web page..." so it should be /wiki/ URL not the /entity/

To be fair the examples here use the dbpedia ID, not the dbpedia page:
https://www.w3.org/wiki/WebSchemas/sameAs

And Wikipedia itself is linking to the wikidata.org/entity link:
https://validator.schema.org/#url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FCrown_(dentistry)

[WeaverStever]

This reminds me of a discussion about adding the subtype homePage (#2062). That discussion exposed that some people use social media profiles as their main web-presence, so https://schema.org/WebSite https://schema.org/WebPage does not always resolve to the document root of the domain.

Further discussion exposed that these social-media sites generally use aliases called folksonomy tags as identifiers which are specific to the domain, usually the ampersand is used to prefix an identity and a hashtag identifies a collection of related topics.

For instance, the politician @ocasio2018, is now far more widely known for the folksonomy tag that twitter gifted to her @aoc.

My suggestion here is that having two new properties, ontologies (Wikidata, ISNI etc) and folksonomies (ampersand and hashtag identities -- accompanied with the specific domain) might make it easier for data-consumers to do more targeted searches.

I've always used sameAs, to point to the human readable page because many persons and organizations are too new for Wikipedia pages and without a Wikipedia page, you can't get a Wikidata entity. Additionally, most webpages have the structured data embedded within the human readable version. (I believe the previous guidance for https://schema.org/sameAs included news articles social media pages as a collection.)

IMHO Wikidata (and therefore Wikipedia) may be trustworthy as "a reference Web page that unambiguously indicates the item's identity." for the thing type, but it is highly dubious for persons and creativeworks because the platform has been captured by politicos and special interests.