From FOAF

[edit] Advanced FOAF Examples

Neat things you can say and do with FOAF.

[edit] Example 1

Here we talk about a Web document that includes a picture of a document by someone, to someone, about someone...

<?xml version="1.0" encoding="UTF-8"?> 
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" 
        xmlns:foaf="http://xmlns.com/foaf/0.1/" 
        xmlns:fc="http://xmlns.com/foaf/corp#" 
        xmlns:dc="http://purl.org/dc/elements/1.1/" > 
 
  <foaf:Document rdf:about="http://www.american-buddha.com/north.memo.htm#MEMORANDUM%20FROM%20JOHN%20POINDEXTER%20TO%20WILLIAM%20CASEY"> 
    <foaf:depicts> <!-- perhaps an extended sense of depicts? to discuss... --> 
      <foaf:Document> 
        <dc:type>Letter</dc:type> 
        <dc:date>1986-05-27</dc:date> 
        <dc:creator> 
          <foaf:Person> 
            <!-- here we say that a creator of the depicted document was a person who was a topic of this guardian article: --> 
            <foaf:name>John Poindexter</foaf:name> 
            <foaf:phone rdf:resource="tel:+1.301.424.6613"/> 
            <foaf:page> 
              <foaf:Document rdf:about="http://www.guardian.co.uk/Archive/Article/0,4273,4358017,00.html"> 
                <dc:title>No more Mr Scrupulous Guy</dc:title> 
                <dc:description>How one of the two brains behind the Iran-Contra scandal this week became one of America's most powerful men.</dc:description> 
              </foaf:Document> 
            </foaf:page> 
 
            <!-- and here we mention other pages about him, without providing detailed description of it: --> 
            <foaf:page rdf:resource="http://www.warblogging.com/tia/poindexter.php"/> 
            <foaf:page rdf:resource="http://www.cnn.com/SPECIALS/cold.war/episodes/18/archive/"/> 
            <foaf:depiction> 
              <foaf:Image rdf:about="http://www.warblogging.com/illustrations/poindexter.jpg"> 
                <foaf:depicts>
                     <!-- this illustrates how foaf:depiction and foaf:depicts work as inverses, we have said that  
                      there is a document that depicts a document that depicts a person that has a depiction which is  
                      this image which depicts a person who is... --> 
                  <foaf:Person> 
                    <foaf:name>Ronald Reagan</foaf:name> 
                  </foaf:Person> 
                </foaf:depicts> 
              </foaf:Image> 
            </foaf:depiction> 
          </foaf:Person> 
        </dc:creator> 
        <foaf:topic> 
          <foaf:Person> 
            <foaf:name>Oliver North</foaf:name> 
          </foaf:Person> 
        </foaf:topic> 
        <foaf:topic> 
           <foaf:Person> 
             <foaf:name>Robert Hunt</foaf:name> 
           </foaf:Person> 
        </foaf:topic> 
 
      </foaf:Document> 
    </foaf:depicts> 
  </foaf:Document> 
 
</rdf:RDF> 

In a different vein...

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"   
  xmlns:wn="http://xmlns.com/wordnet/1.6/"  xmlns:foaf="http://xmlns.com/foaf/0.1/" > 
  <Person>
    <name>Libby Miller</name>
    <owns>
      <wn:Cake>
        <depiction rdf:resource="http://swordfish.rdfweb.org/photos/2003/10/23/2003-10-23-Images/1.jpg"/>
        <maker>
          <Person>
            <name>Charles McCathieNevile</name>
          </Person>
        </maker>
      </wn:Cake>
    </owns>
  </Person>
</rdf:RDF>

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