Description
The element rdf:type specifies that given rdf:Description element conforms to some specified definition.
In our case there are definitions of the element Author, with two children,
firstName and surname and of the element Book.
Source
<rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:lib="http://www.zvon.org/library">
<rdf:Description about="RD">
<rdf:type resource="http://www.zvon.org/library/Author"/>
<lib:firstName>Roald</lib:firstName>
<lib:surname>Dahl</lib:surname>
</rdf:Description>
<rdf:Description about="JC">
<rdf:type resource="http://www.zvon.org/library/Author"/>
<lib:firstName>Joseph</lib:firstName>
<lib:surname>Conrad</lib:surname>
</rdf:Description>
<rdf:Description about="Matilda">
<rdf:type resource="http://www.zvon.org/library/Book"/>
<lib:creator rdf:resource='RD'/>
<lib:pages>240</lib:pages>
</rdf:Description>
<rdf:Description about="The BFG">
<rdf:type resource="http://www.zvon.org/library/Book"/>
<lib:creator rdf:resource='RD'/>
<lib:pages>208</lib:pages>
</rdf:Description>
<rdf:Description about="Heart of Darkness">
<rdf:type resource="http://www.zvon.org/library/Book"/>
<lib:creator rdf:resource='JC'/>
<lib:pages>110</lib:pages>
</rdf:Description>
<rdf:Description about="Lord Jim">
<rdf:type resource="http://www.zvon.org/library/Book"/>
<lib:creator rdf:resource='JC'/>
<lib:pages>314</lib:pages>
</rdf:Description>
<rdf:Description about="The Secret Agent">
<rdf:type resource="http://www.zvon.org/library/Book"/>
<lib:creator rdf:resource='JC'/>
<lib:pages>249</lib:pages>
</rdf:Description>
</rdf:RDF>
Output
Top
| Author |
Title |
Pages |
| Dahl, Roald |
Matilda |
240 |
| Dahl, Roald |
The BFG |
208 |
| Conrad, Joseph |
Heart of Darkness |
110 |
| Conrad, Joseph |
Lord Jim |
314 |
| Conrad, Joseph |
The Secret Agent |
249 |