<?xml version="1.0" ?> 
 <rdf:RDF
   xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
   xmlns="http://www.daml.org/2001/03/daml+oil#"
   xmlns:daml="http://www.daml.org/2001/03/daml+oil#"
   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
 >
 <daml:Ontology rdf:about="">
  <daml:versionInfo>$Id: Holderfield.daml,v 1.0 2001/05/31 15:09:34 stephens Exp $
  </daml:versionInfo> 
  <rdfs:comment>A General Human/People/person Ontology</rdfs:comment> 
  <daml:imports resource="http://www.daml.org/2001/03/daml+oil" /> 
 </daml:Ontology>
<!-- Categories -->

<Class rdf:ID="SpaceMission">
  <subClassOf rdf:resource="#Thing" />
</Class>

<Class rdf:ID="Astronaut">
  <subClassOf rdf:resource="#SpaceMission" />
</Class>

<Class rdf:ID="Machine">
  <subClassOf rdf:resource="#SpaceMission" />
</Class>

<Class rdf:ID="Supplies">
  <subClassOf rdf:resource="#SpaceMission" />
</Class>

<Class rdf:ID="Robot">
  <subClassOf rdf:resource="#Astronaut" />
  <subClassOf rdf:resource="#Machine" />
</Class>

<Class rdf:ID="Person">
  <subClassOf rdf:resource="#Astronaut" />
</Class>

<Class rdf:ID="Spacecraft">
  <subClassOf rdf:resource="#Machine" />
</Class>

<Class rdf:ID="Food">
  <subClassOf rdf:resource="#Supplies" />
</Class>

<Class rdf:ID="Scientist">
  <subClassOf rdf:resource="#Person" />
</Class>

<Class rdf:ID="Pilot">
  <subClassOf rdf:resource="#Person" />
</Class>

<Class rdf:ID="Shuttle">
  <subClassOf rdf:resource="#Spacecraft" />
</Class>

<Class rdf:ID="Probe">
  <subClassOf rdf:resource="#Spacecraft" />
  <subClassOf rdf:resource="#Supplies" />
</Class>

<Class rdf:ID="Food">
  <subClassOf rdf:resource="#Supplies" />
</Class>

<!-- Relationships -->

<Property rdf:ID="flies">
  <domain rdf:resource="#Pilot" />
  <range rdf:resource="#Shuttle" />
</Property>

<Property rdf:ID="sendOut">
  <domain rdf:resource="#Scientist" />
  <range rdf:resource="#Probe" />
</Property>

<Property rdf:ID="eats">
  <domain rdf:resource="#Person" />
  <range rdf:resource="#Food" />
</Property>

<!-- Renaming -->

<Class rdf:ID="Thing">
  <equivalentTo rdf:resource="http://www.daml.org/2001/03/daml+oil#Thing" />
</Class>


</rdf:RDF>