diff --git a/metadata.yaml b/metadata.yaml
index 8be93b1..8319fc0 100644
--- a/metadata.yaml
+++ b/metadata.yaml
@@ -37,5 +37,6 @@ subjects:
 - !lcsh 'Flight -- Juvenile fiction'
 - !lcsh 'Aeronautics -- Juvenile fiction'
 - !lcsh 'Africa -- Juvenile fiction'
+- GITenberg
 title: The Boy Aviators in Africa; Or, an Aerial Ivory Trail
 url: http://www.gutenberg.org/ebooks/6905
diff --git a/pg6905.rdf b/pg6905.rdf
index 4e261b5..f8d75e9 100644
--- a/pg6905.rdf
+++ b/pg6905.rdf
@@ -1,192 +1,179 @@
 <?xml version="1.0" encoding="utf-8"?>
 <rdf:RDF xml:base="http://www.gutenberg.org/"
+  xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
   xmlns:dcterms="http://purl.org/dc/terms/"
-  xmlns:cc="http://web.resource.org/cc/"
   xmlns:dcam="http://purl.org/dc/dcam/"
+  xmlns:cc="http://web.resource.org/cc/"
   xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
-  xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
   xmlns:pgterms="http://www.gutenberg.org/2009/pgterms/"
 >
   <pgterms:ebook rdf:about="ebooks/6905">
+    <dcterms:creator>
+      <pgterms:agent rdf:about="2009/agents/1974">
+        <pgterms:alias>West, Marvin</pgterms:alias>
+        <pgterms:birthdate rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">1879</pgterms:birthdate>
+        <pgterms:deathdate rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">1917</pgterms:deathdate>
+        <pgterms:name>Goldfrap, John Henry</pgterms:name>
+        <pgterms:alias>Lawton, Wilbur</pgterms:alias>
+        <pgterms:alias>Lawton, Captain Wilbur</pgterms:alias>
+        <pgterms:webpage rdf:resource="http://en.wikipedia.org/wiki/John_Henry_Goldfrap"/>
+        <pgterms:alias>Deering, Fremont B.</pgterms:alias>
+        <pgterms:alias>Dexter J. Forrester</pgterms:alias>
+        <pgterms:alias>Payson, Howard</pgterms:alias>
+      </pgterms:agent>
+    </dcterms:creator>
+    <dcterms:subject>
+      <rdf:Description rdf:nodeID="N99847af9a4194754b17e49090244160f">
+        <dcam:memberOf rdf:resource="http://purl.org/dc/terms/LCSH"/>
+        <rdf:value>Africa -- Juvenile fiction</rdf:value>
+      </rdf:Description>
+    </dcterms:subject>
     <dcterms:hasFormat>
-      <pgterms:file rdf:about="http://www.gutenberg.org/files/6905/6905-h.zip">
-        <dcterms:isFormatOf rdf:resource="ebooks/6905"/>
+      <pgterms:file rdf:about="http://www.gutenberg.org/files/6905/6905-0.zip">
+        <dcterms:extent rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">124140</dcterms:extent>
         <dcterms:format>
-          <rdf:Description rdf:nodeID="Ncf188f120826471da9f32008fec1b608">
+          <rdf:Description rdf:nodeID="Na7b053711cbe4274930a2b33808653ee">
             <dcam:memberOf rdf:resource="http://purl.org/dc/terms/IMT"/>
-            <rdf:value rdf:datatype="http://purl.org/dc/terms/IMT">application/zip</rdf:value>
+            <rdf:value rdf:datatype="http://purl.org/dc/terms/IMT">text/plain; charset=utf-8</rdf:value>
           </rdf:Description>
         </dcterms:format>
         <dcterms:modified rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2014-10-31T21:11:40</dcterms:modified>
+        <dcterms:isFormatOf rdf:resource="ebooks/6905"/>
         <dcterms:format>
-          <rdf:Description rdf:nodeID="Nf8677c6561a64e62b2c7b736c528e5f2">
-            <rdf:value rdf:datatype="http://purl.org/dc/terms/IMT">text/html; charset=utf-8</rdf:value>
+          <rdf:Description rdf:nodeID="N4f0ae496a5f94227910e1cf5136bdfb7">
             <dcam:memberOf rdf:resource="http://purl.org/dc/terms/IMT"/>
+            <rdf:value rdf:datatype="http://purl.org/dc/terms/IMT">application/zip</rdf:value>
           </rdf:Description>
         </dcterms:format>
-        <dcterms:extent rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">127211</dcterms:extent>
       </pgterms:file>
     </dcterms:hasFormat>
     <dcterms:hasFormat>
       <pgterms:file rdf:about="http://www.gutenberg.org/ebooks/6905.rdf">
+        <dcterms:modified rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2018-09-13T05:05:16.349992</dcterms:modified>
+        <dcterms:isFormatOf rdf:resource="ebooks/6905"/>
+        <dcterms:extent rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">11850</dcterms:extent>
         <dcterms:format>
-          <rdf:Description rdf:nodeID="Nfe7bf0e0ff2c4afb9809028c8f0aeb2c">
-            <dcam:memberOf rdf:resource="http://purl.org/dc/terms/IMT"/>
+          <rdf:Description rdf:nodeID="N30224e54a6de431997de640c0e3b2fb4">
             <rdf:value rdf:datatype="http://purl.org/dc/terms/IMT">application/rdf+xml</rdf:value>
+            <dcam:memberOf rdf:resource="http://purl.org/dc/terms/IMT"/>
           </rdf:Description>
         </dcterms:format>
-        <dcterms:isFormatOf rdf:resource="ebooks/6905"/>
-        <dcterms:modified rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2016-02-04T03:10:43.707449</dcterms:modified>
-        <dcterms:extent rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">11836</dcterms:extent>
       </pgterms:file>
     </dcterms:hasFormat>
     <dcterms:subject>
-      <rdf:Description rdf:nodeID="N6919a86ff7264a0fb90d1ad01e4118bc">
-        <rdf:value>Flight -- Juvenile fiction</rdf:value>
-        <dcam:memberOf rdf:resource="http://purl.org/dc/terms/LCSH"/>
+      <rdf:Description rdf:nodeID="N523a0afa874c4e99ba68b68083f21926">
+        <rdf:value>PZ</rdf:value>
+        <dcam:memberOf rdf:resource="http://purl.org/dc/terms/LCC"/>
       </rdf:Description>
     </dcterms:subject>
-    <dcterms:creator>
-      <pgterms:agent rdf:about="2009/agents/1974">
-        <pgterms:alias>Lawton, Captain Wilbur</pgterms:alias>
-        <pgterms:webpage rdf:resource="http://en.wikipedia.org/wiki/John_Henry_Goldfrap"/>
-        <pgterms:alias>West, Marvin</pgterms:alias>
-        <pgterms:alias>Dexter J. Forrester</pgterms:alias>
-        <pgterms:alias>Payson, Howard</pgterms:alias>
-        <pgterms:birthdate rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">1879</pgterms:birthdate>
-        <pgterms:alias>Deering, Fremont B.</pgterms:alias>
-        <pgterms:deathdate rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">1917</pgterms:deathdate>
-        <pgterms:alias>Lawton, Wilbur</pgterms:alias>
-        <pgterms:name>Goldfrap, John Henry</pgterms:name>
-      </pgterms:agent>
-    </dcterms:creator>
-    <dcterms:publisher>Project Gutenberg</dcterms:publisher>
-    <pgterms:downloads rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">32</pgterms:downloads>
-    <pgterms:bookshelf>
-      <rdf:Description rdf:nodeID="Nb10fd62f81a84e4f8500679d6779eae3">
-        <dcam:memberOf rdf:resource="2009/pgterms/Bookshelf"/>
-        <rdf:value>Africa</rdf:value>
-      </rdf:Description>
-    </pgterms:bookshelf>
+    <dcterms:title>The Boy Aviators in Africa; Or, an Aerial Ivory Trail</dcterms:title>
+    <pgterms:downloads rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">31</pgterms:downloads>
     <dcterms:hasFormat>
-      <pgterms:file rdf:about="http://www.gutenberg.org/ebooks/6905.kindle.images">
+      <pgterms:file rdf:about="http://www.gutenberg.org/ebooks/6905.kindle.noimages">
         <dcterms:isFormatOf rdf:resource="ebooks/6905"/>
-        <dcterms:extent rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">564603</dcterms:extent>
-        <dcterms:modified rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2016-02-04T03:10:42.054522</dcterms:modified>
+        <dcterms:extent rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">564568</dcterms:extent>
+        <dcterms:modified rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2018-09-04T01:48:02.801564</dcterms:modified>
         <dcterms:format>
-          <rdf:Description rdf:nodeID="Na48ac85c027a4e968a1330bd30b91294">
-            <rdf:value rdf:datatype="http://purl.org/dc/terms/IMT">application/x-mobipocket-ebook</rdf:value>
+          <rdf:Description rdf:nodeID="N8ce19ffb26534cbb9478e593c557e18e">
             <dcam:memberOf rdf:resource="http://purl.org/dc/terms/IMT"/>
+            <rdf:value rdf:datatype="http://purl.org/dc/terms/IMT">application/x-mobipocket-ebook</rdf:value>
           </rdf:Description>
         </dcterms:format>
       </pgterms:file>
     </dcterms:hasFormat>
+    <pgterms:bookshelf>
+      <rdf:Description rdf:nodeID="N72778911cda84205803b1a95e637fec3">
+        <rdf:value>Children's Book Series</rdf:value>
+        <dcam:memberOf rdf:resource="2009/pgterms/Bookshelf"/>
+      </rdf:Description>
+    </pgterms:bookshelf>
     <dcterms:hasFormat>
-      <pgterms:file rdf:about="http://www.gutenberg.org/ebooks/6905.epub.noimages">
-        <dcterms:extent rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">134682</dcterms:extent>
-        <dcterms:modified rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2016-02-04T03:10:40.210608</dcterms:modified>
-        <dcterms:isFormatOf rdf:resource="ebooks/6905"/>
+      <pgterms:file rdf:about="http://www.gutenberg.org/files/6905/6905-h.zip">
         <dcterms:format>
-          <rdf:Description rdf:nodeID="N4ebc960b28cb49dc8c4272467b810180">
+          <rdf:Description rdf:nodeID="Nd76ab2bb82354a0c8b66a2748b2cd4d7">
             <dcam:memberOf rdf:resource="http://purl.org/dc/terms/IMT"/>
-            <rdf:value rdf:datatype="http://purl.org/dc/terms/IMT">application/epub+zip</rdf:value>
+            <rdf:value rdf:datatype="http://purl.org/dc/terms/IMT">text/html; charset=utf-8</rdf:value>
           </rdf:Description>
         </dcterms:format>
-      </pgterms:file>
-    </dcterms:hasFormat>
-    <dcterms:hasFormat>
-      <pgterms:file rdf:about="http://www.gutenberg.org/files/6905/6905-0.zip">
+        <dcterms:extent rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">127211</dcterms:extent>
         <dcterms:format>
-          <rdf:Description rdf:nodeID="N86d89f9b25aa46dfa4f1eaca062713dd">
+          <rdf:Description rdf:nodeID="Naf11cf6797bb488ead3f4f37249d662b">
             <dcam:memberOf rdf:resource="http://purl.org/dc/terms/IMT"/>
             <rdf:value rdf:datatype="http://purl.org/dc/terms/IMT">application/zip</rdf:value>
           </rdf:Description>
         </dcterms:format>
         <dcterms:isFormatOf rdf:resource="ebooks/6905"/>
         <dcterms:modified rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2014-10-31T21:11:40</dcterms:modified>
-        <dcterms:format>
-          <rdf:Description rdf:nodeID="N82fda64e350d4b729fd816dfb348c149">
-            <dcam:memberOf rdf:resource="http://purl.org/dc/terms/IMT"/>
-            <rdf:value rdf:datatype="http://purl.org/dc/terms/IMT">text/plain; charset=utf-8</rdf:value>
-          </rdf:Description>
-        </dcterms:format>
-        <dcterms:extent rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">124140</dcterms:extent>
       </pgterms:file>
     </dcterms:hasFormat>
+    <dcterms:publisher>Project Gutenberg</dcterms:publisher>
+    <dcterms:issued rdf:datatype="http://www.w3.org/2001/XMLSchema#date">2004-11-01</dcterms:issued>
+    <pgterms:bookshelf>
+      <rdf:Description rdf:nodeID="Ncefb734538a94b529a770e6f74a65b68">
+        <dcam:memberOf rdf:resource="2009/pgterms/Bookshelf"/>
+        <rdf:value>Africa</rdf:value>
+      </rdf:Description>
+    </pgterms:bookshelf>
     <dcterms:hasFormat>
-      <pgterms:file rdf:about="http://www.gutenberg.org/files/6905/6905-h/6905-h.htm">
+      <pgterms:file rdf:about="http://www.gutenberg.org/ebooks/6905.kindle.images">
         <dcterms:isFormatOf rdf:resource="ebooks/6905"/>
-        <dcterms:modified rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2014-10-31T21:08:56</dcterms:modified>
+        <dcterms:modified rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2018-09-04T01:48:01.569566</dcterms:modified>
         <dcterms:format>
-          <rdf:Description rdf:nodeID="Nadae8c13ea8d462a9fd85060cb23da30">
-            <rdf:value rdf:datatype="http://purl.org/dc/terms/IMT">text/html; charset=utf-8</rdf:value>
+          <rdf:Description rdf:nodeID="Nb4867eab2fd4464cac6051bc88462bcd">
             <dcam:memberOf rdf:resource="http://purl.org/dc/terms/IMT"/>
+            <rdf:value rdf:datatype="http://purl.org/dc/terms/IMT">application/x-mobipocket-ebook</rdf:value>
           </rdf:Description>
         </dcterms:format>
-        <dcterms:extent rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">347938</dcterms:extent>
+        <dcterms:extent rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">564575</dcterms:extent>
       </pgterms:file>
     </dcterms:hasFormat>
-    <dcterms:rights>Public domain in the USA.</dcterms:rights>
+    <dcterms:subject>
+      <rdf:Description rdf:nodeID="N17aade98aabd4bedaea33c24c5856035">
+        <rdf:value>Flight -- Juvenile fiction</rdf:value>
+        <dcam:memberOf rdf:resource="http://purl.org/dc/terms/LCSH"/>
+      </rdf:Description>
+    </dcterms:subject>
     <dcterms:language>
-      <rdf:Description rdf:nodeID="N43ec5000a8e44b05857adcca379b6215">
+      <rdf:Description rdf:nodeID="N0d847d1450de414e848fe8078c84c7b0">
         <rdf:value rdf:datatype="http://purl.org/dc/terms/RFC4646">en</rdf:value>
       </rdf:Description>
     </dcterms:language>
+    <dcterms:license rdf:resource="license"/>
+    <dcterms:rights>Public domain in the USA.</dcterms:rights>
     <dcterms:subject>
-      <rdf:Description rdf:nodeID="N7b6b2f52f75249458f57f48d63718db2">
-        <rdf:value>PZ</rdf:value>
-        <dcam:memberOf rdf:resource="http://purl.org/dc/terms/LCC"/>
-      </rdf:Description>
-    </dcterms:subject>
-    <dcterms:subject>
-      <rdf:Description rdf:nodeID="N382566692af846e88771e725f9822428">
-        <dcam:memberOf rdf:resource="http://purl.org/dc/terms/LCSH"/>
+      <rdf:Description rdf:nodeID="N0a64597314af4ec8a35dc93d079efcf7">
         <rdf:value>Aeronautics -- Juvenile fiction</rdf:value>
+        <dcam:memberOf rdf:resource="http://purl.org/dc/terms/LCSH"/>
       </rdf:Description>
     </dcterms:subject>
-    <pgterms:bookshelf>
-      <rdf:Description rdf:nodeID="N9b0ca119102744aabc424b4e997ac052">
-        <rdf:value>Children's Book Series</rdf:value>
-        <dcam:memberOf rdf:resource="2009/pgterms/Bookshelf"/>
-      </rdf:Description>
-    </pgterms:bookshelf>
     <dcterms:hasFormat>
-      <pgterms:file rdf:about="http://www.gutenberg.org/ebooks/6905.kindle.noimages">
-        <dcterms:modified rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2016-02-04T03:10:43.467463</dcterms:modified>
+      <pgterms:file rdf:about="http://www.gutenberg.org/ebooks/6905.epub.images">
+        <dcterms:extent rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">134651</dcterms:extent>
         <dcterms:isFormatOf rdf:resource="ebooks/6905"/>
-        <dcterms:extent rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">564594</dcterms:extent>
         <dcterms:format>
-          <rdf:Description rdf:nodeID="N3512937d6c8544d7b26d667084697ff1">
+          <rdf:Description rdf:nodeID="Nf26fb752d6ea46ce8ee073e13d8f4686">
             <dcam:memberOf rdf:resource="http://purl.org/dc/terms/IMT"/>
-            <rdf:value rdf:datatype="http://purl.org/dc/terms/IMT">application/x-mobipocket-ebook</rdf:value>
+            <rdf:value rdf:datatype="http://purl.org/dc/terms/IMT">application/epub+zip</rdf:value>
           </rdf:Description>
         </dcterms:format>
+        <dcterms:modified rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2018-09-04T01:48:00.116588</dcterms:modified>
       </pgterms:file>
     </dcterms:hasFormat>
-    <dcterms:subject>
-      <rdf:Description rdf:nodeID="N8c44e776078f49b68d8a120236e54b5f">
-        <dcam:memberOf rdf:resource="http://purl.org/dc/terms/LCSH"/>
-        <rdf:value>Africa -- Juvenile fiction</rdf:value>
-      </rdf:Description>
-    </dcterms:subject>
-    <dcterms:issued rdf:datatype="http://www.w3.org/2001/XMLSchema#date">2004-11-01</dcterms:issued>
     <dcterms:hasFormat>
-      <pgterms:file rdf:about="http://www.gutenberg.org/ebooks/6905.epub.images">
+      <pgterms:file rdf:about="http://www.gutenberg.org/ebooks/6905.epub.noimages">
         <dcterms:isFormatOf rdf:resource="ebooks/6905"/>
-        <dcterms:modified rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2016-02-04T03:10:39.559631</dcterms:modified>
-        <dcterms:extent rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">134683</dcterms:extent>
         <dcterms:format>
-          <rdf:Description rdf:nodeID="N3b00584e837848a6bafb24e77cb053d3">
+          <rdf:Description rdf:nodeID="Nef4fc49add6b4dad8dd44a5801dc1fa7">
             <dcam:memberOf rdf:resource="http://purl.org/dc/terms/IMT"/>
             <rdf:value rdf:datatype="http://purl.org/dc/terms/IMT">application/epub+zip</rdf:value>
           </rdf:Description>
         </dcterms:format>
+        <dcterms:modified rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2018-09-04T01:48:00.333580</dcterms:modified>
+        <dcterms:extent rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">134652</dcterms:extent>
       </pgterms:file>
     </dcterms:hasFormat>
-    <dcterms:license rdf:resource="license"/>
-    <dcterms:title>The Boy Aviators in Africa; Or, an Aerial Ivory Trail</dcterms:title>
     <dcterms:type>
-      <rdf:Description rdf:nodeID="Nb5f229978b7143e881ef38ab77823b5c">
+      <rdf:Description rdf:nodeID="N8c65b78ce260459da8d4e4fd378b229e">
         <dcam:memberOf rdf:resource="http://purl.org/dc/terms/DCMIType"/>
         <rdf:value>Text</rdf:value>
       </rdf:Description>
@@ -194,21 +181,34 @@
     <dcterms:hasFormat>
       <pgterms:file rdf:about="http://www.gutenberg.org/files/6905/6905-0.txt">
         <dcterms:isFormatOf rdf:resource="ebooks/6905"/>
+        <dcterms:modified rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2014-10-31T21:08:46</dcterms:modified>
         <dcterms:extent rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">323924</dcterms:extent>
         <dcterms:format>
-          <rdf:Description rdf:nodeID="N6403e05b3db6450f85a862b3a2354a8f">
+          <rdf:Description rdf:nodeID="N8e8712ddc14d4eb9bb1352723492305f">
             <rdf:value rdf:datatype="http://purl.org/dc/terms/IMT">text/plain; charset=utf-8</rdf:value>
             <dcam:memberOf rdf:resource="http://purl.org/dc/terms/IMT"/>
           </rdf:Description>
         </dcterms:format>
-        <dcterms:modified rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2014-10-31T21:08:46</dcterms:modified>
+      </pgterms:file>
+    </dcterms:hasFormat>
+    <dcterms:hasFormat>
+      <pgterms:file rdf:about="http://www.gutenberg.org/files/6905/6905-h/6905-h.htm">
+        <dcterms:modified rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2014-10-31T21:08:56</dcterms:modified>
+        <dcterms:isFormatOf rdf:resource="ebooks/6905"/>
+        <dcterms:extent rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">347938</dcterms:extent>
+        <dcterms:format>
+          <rdf:Description rdf:nodeID="Nda47aefc17f24e0684e459d615d501ff">
+            <rdf:value rdf:datatype="http://purl.org/dc/terms/IMT">text/html; charset=utf-8</rdf:value>
+            <dcam:memberOf rdf:resource="http://purl.org/dc/terms/IMT"/>
+          </rdf:Description>
+        </dcterms:format>
       </pgterms:file>
     </dcterms:hasFormat>
   </pgterms:ebook>
   <cc:Work rdf:about="">
-    <cc:license rdf:resource="http://www.gnu.org/licenses/gpl.html"/>
     <rdfs:comment>Archives containing the RDF files for *all* our books can be downloaded at
             http://www.gutenberg.org/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog</rdfs:comment>
+    <cc:license rdf:resource="https://creativecommons.org/publicdomain/zero/1.0/"/>
   </cc:Work>
   <rdf:Description rdf:about="http://en.wikipedia.org/wiki/John_Henry_Goldfrap">
     <dcterms:description>Wikipedia</dcterms:description>