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    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:owl="http://www.w3.org/2002/07/owl#">
  <owl:Class rdf:about="http://inferenceweb.stanford.edu/2004/07/iw.owl#Source"/>
  <owl:Class rdf:about="http://inferenceweb.stanford.edu/2004/07/iw.owl#DeclarativeRule"/>
  <owl:Class rdf:about="http://inferenceweb.stanford.edu/2004/07/iw.owl#Team"/>
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  <rdf:Property rdf:about="http://inferenceweb.stanford.edu/2004/07/iw.owl#name"/>
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  <rdf:Property rdf:about="http://inferenceweb.stanford.edu/2004/07/iw.owl#englishExample"/>
  <rdf:Property rdf:about="http://inferenceweb.stanford.edu/2004/07/iw.owl#englishDescription"/>
  <iw:Source rdf:about="http://inferenceweb.stanford.edu/registry/PUB/RelationalModel.owl#RelationalModel"/>
  <rdf:List rdf:about="http://www.w3.org/1999/02/22-rdf-syntax-ns#nil"/>
  <iw:Team rdf:about="http://inferenceweb.stanford.edu/registry/TM/ISI-InfAgents.owl#ISI-InfAgents"/>
  <iw:DeclarativeRule rdf:about="http://inferenceweb.stanford.edu/registry/DPR/Project.owl#Project"
     iw:firstSubmissionDate="20041014145053"
     iw:lastSubmissionDate="20041014163907">
    <iw:name>Relational Algebra Projection</iw:name>
    <iw:englishDescription>This rule represents the relational algebra projection operation. It output a new relation with only the specified columns. 
</iw:englishDescription>
    <iw:englishExample>Project("r(x, y, z)", "x, y", "s(x, y)")</iw:englishExample>
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