Annotea: Metadata based annotation infrastructure - slide "RDF schema for head classification"

<bm:Topic rdf:about="http://www.w3.org/2002/04/26-face#head">
   <rdfs:label>head</rdfs:label>
   <rdfs:comment>part of an animal</rdfs:comment>
</bm:Topic>

<bm:Topic rdf:about="http://www.w3.org/2002/04/26-face#eye"> 
   <rdfs:label>eye</rdfs:label>
   <rdfs:comment>commonly found on heads</rdfs:comment>  
   <bm:subTopicOf rdf:resource="http://www.w3.org/2002/04/26-face#head"/>
</bm:Topic>

<bm:Topic rdf:about="http://www.w3.org/2002/04/26-face#pupil">
   <rdfs:label>pupil</rdfs:label>   
   <rdfs:comment>part of an eye</rdfs:comment> 
   <bm:subTopicOf rdf:resource="http://www.w3.org/2002/04/26-face#eye"/>
</bm:Topic>>