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     <!ENTITY cyc  "http://sw.cyc.com/concept/" >
     <!ENTITY rdf  "http://www.w3.org/1999/02/22-rdf-syntax-ns#" >
     <!ENTITY rdfs "http://www.w3.org/2000/01/rdf-schema#" >
     <!ENTITY xsd  "http://www.w3.org/2001/XMLSchema#" >
     <!ENTITY owl  "http://www.w3.org/2002/07/owl#" >
   ]>

<rdf:RDF xml:base="http://sw.opencyc.org/concept/"
         xmlns="http://sw.opencyc.org/concept/"
         xmlns:cycAnnot="http://sw.cyc.com/CycAnnotations_v1#"
         xmlns:rdf="&rdf;"
         xmlns:rdfs="&rdfs;"
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  <owl:Ontology rdf:about="http://sw.opencyc.org/concept/">
    <owl:versionInfo>2009/04/07</owl:versionInfo>
    <rdfs:comment xml:lang="en">

       OpenCyc Knowledge Base

       Copyright© 2001-2009 Cycorp, Inc., http://www.cyc.com/, Austin, TX, USA

       This file contains an OWL representation of information contained
       in the OpenCyc Knowledge Base. The content of this OWL file is
       licensed under the Creative Commons Attribution 3.0 license whose
       text can be found at http://creativecommons.org/licenses/by/3.0/legalcode.
       The content of this OWL file, including the OpenCyc content it represents,
       constitutes the &quot;Work&quot; referred to in the Creative Commons license. The terms of
       this license equally apply to, without limitation, renamings and other
       logically equivalent reformulations of the content of this OWL file
       (or portions thereof) in any natural or formal language, as well
       as to derivations of this content or inclusion of it in other ontologies.

       Mappings between OpenCyc terms and Wikipedia article names provided by
       Olena Medelyan and Catherine Legg, University of Waikato, NZ under a Creative 
       Commons Attribution 3.0 license.

    </rdfs:comment>
  </owl:Ontology>

  <owl:AnnotationProperty rdf:about="http://sw.cyc.com/CycAnnotations_v1#externalID">
    <rdfs:label xml:lang="en">externalID</rdfs:label>
    <rdfs:comment xml:lang="en">
      A unique, language-neutral, variable-sized identifier
      for a concept that can be used to refer unambiguously to that concept across 
      OWL exports or across Cyc inference engines.
    </rdfs:comment>
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty"/>
  </owl:AnnotationProperty>

  <owl:AnnotationProperty rdf:about="http://sw.cyc.com/CycAnnotations_v1#label">
    <rdfs:label xml:lang="en">label</rdfs:label>
    <rdfs:comment xml:lang="en">
      A natural-language representation for a concept that is both human 
      readable and readable by the Cyc inference engine. These terms are not 
      guaranteed to refer to the same concept across time but are guaranteed to
      be consistent within a particular OWL export. Use 'cycAnnot:externalID'
      for unambiguously referring to a concept across OWL exports or across Cyc
      inference engines.
    </rdfs:comment>
  </owl:AnnotationProperty>

  <owl:Class rdf:about="Mx4rv4C-JZwpEbGdrcN5Y29ycA">
    <cycAnnot:label xml:lang="en">Celebrity</cycAnnot:label>
    <rdfs:comment xml:lang="en">The collection of all celebrities. A type of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjma5wpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;FamousHuman&lt;/a&gt;.</rdfs:comment>
    <rdfs:label xml:lang="en">celebrity</rdfs:label>
    <rdfs:subClassOf rdf:resource="Mx4rvVjma5wpEbGdrcN5Y29ycA"/>
    <rdfs:subClassOf rdf:resource="Mx8Ngh4rvrhK-JwpEbGdrcN5Y29ycA2DHiu9WOR2nCkRsZ2tw3ljb3JwHiu9WICSnCkRsZ2tw3ljb3JwHw2CHisZNSzEC7lPzIMqu4WFYQ3dHiu9WICSnCkRsZ2tw3ljb3Jw"/>
    <rdf:type rdf:resource="Mx4rzw1ZKqTuQdiLqrjLEubYWg"/>
    <rdf:type rdf:resource="Mx4rv5T0dFXuRzqc3ZquUqsm6g"/>
    <rdf:type rdf:resource="Mx4rvWXYgJwpEbGdrcN5Y29ycA"/>
    <owl:sameAs rdf:resource="http://dbpedia.org/ontology/Celebrity"/>
    <owl:sameAs rdf:resource="http://dbpedia.org/resource/Celebrity"/>
    <owl:sameAs rdf:resource="&cyc;Mx4rv4C-JZwpEbGdrcN5Y29ycA"/>
    <owl:sameAs rdf:resource="http://umbel.org/umbel/sc/Celebrity"/>
    <Mx4rBVVEokNxEdaAAACgydogAg rdf:resource="Mx4r3CdT8HS7EdaAAACgyZzFrg"/>
    <Mx4rwLSVCpwpEbGdrcN5Y29ycA xml:lang="en">celebrities</Mx4rwLSVCpwpEbGdrcN5Y29ycA>
    <Mx4rTv-jk9SPTXa991kk5mAvHg>Celebrity</Mx4rTv-jk9SPTXa991kk5mAvHg>
    <Mx4rNv0nbm4TTjOp7yhmnzOyqg>http://en.wikipedia.org/wiki/Celebrity</Mx4rNv0nbm4TTjOp7yhmnzOyqg>
  </owl:Class>

  <owl:Class rdf:about="Mx4rkFxJslCuEdqAAAACs71DGQ">
    <rdfs:subClassOf rdf:resource="Mx4rv4C-JZwpEbGdrcN5Y29ycA"/>
    <rdfs:label xml:lang="en">entertainment celebrity</rdfs:label>
    <rdfs:comment xml:lang="en">The collection of instances of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rv4C-JZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;Celebrity&lt;/a&gt; who owe their celebrity primarily due having played a lead or memorable role (or perhaps a large number of roles) in instances of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvnewlpwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;TVShow_CW&lt;/a&gt;.</rdfs:comment>
    <cycAnnot:label xml:lang="en">Celebrity-Entertainment</cycAnnot:label>
  </owl:Class>

  <owl:Class rdf:about="Mx4rvqQNLpwpEbGdrcN5Y29ycA">
    <rdfs:subClassOf rdf:resource="Mx4rv4C-JZwpEbGdrcN5Y29ycA"/>
    <cycAnnot:label xml:lang="en">Celebrity-Political</cycAnnot:label>
    <rdfs:comment xml:lang="en">Instances of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvqQNLpwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;Celebrity_Political&lt;/a&gt; are people (actually, subabstractions of people) who are well-known due to their involvement, however tangential, in politics.</rdfs:comment>
    <rdfs:label xml:lang="en">political celebrity</rdfs:label>
  </owl:Class>

  <Mx4rv4C-JZwpEbGdrcN5Y29ycA rdf:about="Mx4rv1IXfJwpEbGdrcN5Y29ycA">
    <cycAnnot:label xml:lang="en">ShannonElizabeth</cycAnnot:label>
    <rdfs:label xml:lang="en">Shannon Elizabeth</rdfs:label>
  </Mx4rv4C-JZwpEbGdrcN5Y29ycA>

  <Mx4rv4C-JZwpEbGdrcN5Y29ycA rdf:about="Mx4rnY25gJUPEdaAAAACs4kcJg">
    <cycAnnot:label xml:lang="en">MelissaEtheridge</cycAnnot:label>
    <rdfs:label xml:lang="en">Melissa Etheridge</rdfs:label>
  </Mx4rv4C-JZwpEbGdrcN5Y29ycA>

  <Mx4rv4C-JZwpEbGdrcN5Y29ycA rdf:about="Mx4rvl5OaZwpEbGdrcN5Y29ycA">
    <rdfs:label xml:lang="en">Tara Reid</rdfs:label>
    <cycAnnot:label xml:lang="en">TaraReid</cycAnnot:label>
  </Mx4rv4C-JZwpEbGdrcN5Y29ycA>

  <Mx4rv4C-JZwpEbGdrcN5Y29ycA rdf:about="Mx4rwSHVCpwpEbGdrcN5Y29ycA">
    <cycAnnot:label xml:lang="en">CarlosSantana</cycAnnot:label>
    <rdfs:comment xml:lang="en">Carlos Santana, the famous rock guitarist.</rdfs:comment>
    <rdfs:label xml:lang="en">Carlos Santana</rdfs:label>
  </Mx4rv4C-JZwpEbGdrcN5Y29ycA>

  <Mx4rv4C-JZwpEbGdrcN5Y29ycA rdf:about="Mx4rwM7gZJwpEbGdrcN5Y29ycA">
    <rdfs:label xml:lang="en">Nina Hartley</rdfs:label>
    <cycAnnot:label xml:lang="en">NinaHartley</cycAnnot:label>
  </Mx4rv4C-JZwpEbGdrcN5Y29ycA>

  <Mx4rv4C-JZwpEbGdrcN5Y29ycA rdf:about="Mx4rR-LhhisyEdiaugAH6RYvVQ">
    <cycAnnot:label xml:lang="en">MattLauer</cycAnnot:label>
    <rdfs:label xml:lang="en">Matt Lauer</rdfs:label>
  </Mx4rv4C-JZwpEbGdrcN5Y29ycA>

  <Mx4rv4C-JZwpEbGdrcN5Y29ycA rdf:about="Mx4rwF9UAZwpEbGdrcN5Y29ycA">
    <cycAnnot:label xml:lang="en">DonnaDErrico</cycAnnot:label>
    <rdfs:label xml:lang="en">Donna D&apos;Errico</rdfs:label>
  </Mx4rv4C-JZwpEbGdrcN5Y29ycA>

  <Mx4rv4C-JZwpEbGdrcN5Y29ycA rdf:about="Mx4rwOB3W5wpEbGdrcN5Y29ycA">
    <cycAnnot:label xml:lang="en">JulieStrain</cycAnnot:label>
    <rdfs:label xml:lang="en">Julie Strain</rdfs:label>
  </Mx4rv4C-JZwpEbGdrcN5Y29ycA>

  <Mx4rv4C-JZwpEbGdrcN5Y29ycA rdf:about="Mx4rv7gBbpwpEbGdrcN5Y29ycA">
    <cycAnnot:label xml:lang="en">HeatherLocklear</cycAnnot:label>
    <rdfs:label xml:lang="en">Heather Locklear</rdfs:label>
  </Mx4rv4C-JZwpEbGdrcN5Y29ycA>

  <Mx4rv4C-JZwpEbGdrcN5Y29ycA rdf:about="Mx4rvu41-pwpEbGdrcN5Y29ycA">
    <rdfs:label xml:lang="en">Ashley Judd</rdfs:label>
    <cycAnnot:label xml:lang="en">AshleyJudd</cycAnnot:label>
  </Mx4rv4C-JZwpEbGdrcN5Y29ycA>

  <owl:Class rdf:about="Mx4rvVjma5wpEbGdrcN5Y29ycA">
    <cycAnnot:label xml:lang="en">FamousHuman</cycAnnot:label>
    <rdfs:comment xml:lang="en">A specialization of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rIcwFloGUQdeMlsOWYLFB2w&quot; class=&quot;cyc_term&quot;&gt;HomoSapiens&lt;/a&gt;.  This is the collection of all human beings that are &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rwPzZOJwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;Famous&lt;/a&gt; (i.e. identifiable by a large number of other human beings). See also &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rwKQB3pwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;HistoricHuman&lt;/a&gt;.</rdfs:comment>
    <rdfs:label xml:lang="en">famous person</rdfs:label>
  </owl:Class>

  <owl:ObjectProperty rdf:about="Mx4rwLSVCpwpEbGdrcN5Y29ycA">
    <rdfs:label xml:lang="en">Pretty String</rdfs:label>
    <rdfs:comment xml:lang="en">(&lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rwLSVCpwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;prettyString&lt;/a&gt; TERM STRING) means that STRING is the English word or expression (sequence of words) commonly used to refer to TERM.  The predicate &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rwLSVCpwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;prettyString&lt;/a&gt; is used by the code which generates CycL to English paraphrases, but its applicability is not restricted to this use.</rdfs:comment>
    <cycAnnot:label xml:lang="en">prettyString</cycAnnot:label>
  </owl:ObjectProperty>

  <owl:Class rdf:about="Mx8Ngh4rvrhK-JwpEbGdrcN5Y29ycA2DHiu9WOR2nCkRsZ2tw3ljb3JwHiu9WICSnCkRsZ2tw3ljb3JwHw2CHisZNSzEC7lPzIMqu4WFYQ3dHiu9WICSnCkRsZ2tw3ljb3Jw">
    <rdfs:label xml:lang="en">the union of { person, fictional people }</rdfs:label>
    <cycAnnot:label xml:lang="en">(CollectionUnionFn (TheSet Person (FictionalFn Person)))</cycAnnot:label>
  </owl:Class>

  <owl:Thing rdf:about="http://dbpedia.org/resource/Celebrity">
    <cycAnnot:label xml:lang="en">Celebrity</cycAnnot:label>
    <rdfs:comment xml:lang="en">The collection of all celebrities. A type of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjma5wpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;FamousHuman&lt;/a&gt;.</rdfs:comment>
    <rdfs:label xml:lang="en">celebrity</rdfs:label>
  </owl:Thing>

  <owl:ObjectProperty rdf:about="Mx4rNv0nbm4TTjOp7yhmnzOyqg">
    <rdfs:label xml:lang="en">Wikipedia Article URL</rdfs:label>
    <rdfs:comment xml:lang="en">(&lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rNv0nbm4TTjOp7yhmnzOyqg&quot; class=&quot;cyc_term&quot;&gt;wikipediaArticleURL&lt;/a&gt; THING URL) means that in &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rtqXA6OC8QdiWC72DuLJdUw&quot; class=&quot;cyc_term&quot;&gt;Wikipedia_WebSite&lt;/a&gt; THING is described by an article located at URL</rdfs:comment>
    <cycAnnot:label xml:lang="en">wikipediaArticleURL</cycAnnot:label>
  </owl:ObjectProperty>

  <owl:Class rdf:about="Mx4rzw1ZKqTuQdiLqrjLEubYWg">
    <rdfs:comment xml:lang="en">The collection of all instances of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4r_4bScKNtQdiVw7XtX-HN0Q&quot; class=&quot;cyc_term&quot;&gt;ClarifyingCollectionType&lt;/a&gt; that are used by the &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvYbXiJwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;QueryAugmentationApplication&lt;/a&gt; to resolve natural language ambiguities.</rdfs:comment>
    <cycAnnot:label xml:lang="en">QAClarifyingCollectionType</cycAnnot:label>
    <rdfs:label xml:lang="en">QA clarifying collection type</rdfs:label>
  </owl:Class>

  <owl:Class rdf:about="Mx4rvWXYgJwpEbGdrcN5Y29ycA">
    <rdfs:comment xml:lang="en">A collection of collections.  Each instance of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvWXYgJwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;ExistingObjectType&lt;/a&gt; is a specialization of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVj27ZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;PartiallyTangible&lt;/a&gt; (q.v.).  Moreover, each instance of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvWXYgJwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;ExistingObjectType&lt;/a&gt; is a collection that is temporally stuff-like (see &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVitN5wpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;TemporalStuffType&lt;/a&gt;) but physically-spatially object-like (see &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVirnZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;ObjectType&lt;/a&gt;) -- i.e.  object-like with respect to some physical-spatial part-whole predicate (e.g. some specialization of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4r8a2smPXcQdiEoJhcx65EiQ&quot; class=&quot;cyc_term&quot;&gt;properPhysicalDecompositions&lt;/a&gt;).
&lt;p/&gt;
Consider the collection &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rwJaXepwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;BookCopy&lt;/a&gt;. &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rwJaXepwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;BookCopy&lt;/a&gt; is a specialization of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVj27ZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;PartiallyTangible&lt;/a&gt;. Further, &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rwJaXepwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;BookCopy&lt;/a&gt; is temporally stuff-like: any one of the &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvWn4OZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;timeSlices&lt;/a&gt; of a given copy &lt;code&gt;&lt;b&gt;COPY&lt;/b&gt;&lt;/code&gt; of (say) &amp;quot;Moby Dick&amp;quot; is still a copy of &amp;quot;Moby Dick&amp;quot;. (Most collections of tangible objects are temporally stuff-like in this way.)   But &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rwJaXepwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;BookCopy&lt;/a&gt; is spatially &lt;i&gt;object-like&lt;/i&gt;: if we take a scalpel and slice &lt;code&gt;&lt;b&gt;COPY&lt;/b&gt;&lt;/code&gt; into ten pieces, each piece is not a copy of &amp;quot;Moby Dick&amp;quot;.  So &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rwJaXepwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;BookCopy&lt;/a&gt; is an instance of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvWXYgJwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;ExistingObjectType&lt;/a&gt;.
&lt;p/&gt;
See also &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVir35wpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;StuffType&lt;/a&gt; and &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVny6pwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;ExistingStuffType&lt;/a&gt;.</rdfs:comment>
    <cycAnnot:label xml:lang="en">ExistingObjectType</cycAnnot:label>
    <rdfs:label xml:lang="en">type of object</rdfs:label>
  </owl:Class>

  <owl:Thing rdf:about="http://dbpedia.org/ontology/Celebrity">
    <cycAnnot:label xml:lang="en">Celebrity</cycAnnot:label>
    <rdfs:comment xml:lang="en">The collection of all celebrities. A type of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjma5wpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;FamousHuman&lt;/a&gt;.</rdfs:comment>
    <rdfs:label xml:lang="en">celebrity</rdfs:label>
  </owl:Thing>

  <owl:Class rdf:about="Mx4rv5T0dFXuRzqc3ZquUqsm6g">
    <rdfs:label xml:lang="en">DB pedia OWL class</rdfs:label>
    <cycAnnot:label xml:lang="en">DBPediaOWLClass</cycAnnot:label>
    <rdfs:comment xml:lang="en">A collection of collections.  Each instance of this collection is a collection that corresponds to one of the classes in the DBPedia ontology.</rdfs:comment>
  </owl:Class>

  <owl:ObjectProperty rdf:about="Mx4rBVVEokNxEdaAAACgydogAg">
    <cycAnnot:label xml:lang="en">quotedIsa</cycAnnot:label>
    <rdfs:comment xml:lang="en">A binary &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rDeDIGEW0EdaAAACgydogAg&quot; class=&quot;cyc_term&quot;&gt;MetaLanguagePredicate&lt;/a&gt; (q.v.) that relates CycL expressions to the &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4raOoTci9qEdma4AACs1uxFw&quot; class=&quot;cyc_term&quot;&gt;SubLExpressionType&lt;/a&gt;s (q.v.) of which they are instances.  &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rBVVEokNxEdaAAACgydogAg&quot; class=&quot;cyc_term&quot;&gt;quotedIsa&lt;/a&gt; is thus like a restricted version of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvViBBJwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;isa&lt;/a&gt; (q.v.), but with one important difference: the first argument-place of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rBVVEokNxEdaAAACgydogAg&quot; class=&quot;cyc_term&quot;&gt;quotedIsa&lt;/a&gt; is &amp;quot;implicitly quoted&amp;quot; (see &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rwHb_bZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;quotedArgument&lt;/a&gt;).  So a ground atomic sentence of the form &lt;code&gt;(&lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rBVVEokNxEdaAAACgydogAg&quot; class=&quot;cyc_term&quot;&gt;quotedIsa&lt;/a&gt; &lt;b&gt;THING&lt;/b&gt; &lt;b&gt;EXPR-TYPE&lt;/b&gt;)&lt;/code&gt; does &lt;i&gt;not&lt;/i&gt; mean that &lt;code&gt;&lt;b&gt;THING&lt;/b&gt;&lt;/code&gt; itself is an instance of &lt;code&gt;&lt;b&gt;EXPR-TYPE&lt;/b&gt;&lt;/code&gt;.  Rather, such a sentence is partly self-referential, and means that the particular &lt;i&gt;CycL expression&lt;/i&gt; appearing in the sentence&apos;s own first argument-position is an instance of &lt;code&gt;&lt;b&gt;EXPR-TYPE&lt;/b&gt;&lt;/code&gt;.  Thus, &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rBVVEokNxEdaAAACgydogAg&quot; class=&quot;cyc_term&quot;&gt;quotedIsa&lt;/a&gt; provides a convenient shorthand for stating certain things that would otherwise require explicit quotation (or some other device for naming expressions).
&lt;p/&gt;
This is better illustrated with a specific example.  Suppose we wish to state that the CycL constant &lt;code&gt;&lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvViH35wpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;IndianOcean&lt;/a&gt;&lt;/code&gt; is an instance of the CycL expression type &lt;font color=&quot;#ff0000&quot;&gt;#$PublicConstant&lt;/font&gt;.  We cannot express this with the straightforward &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvViBBJwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;isa&lt;/a&gt; sentence &lt;code&gt;(&lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvViBBJwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;isa&lt;/a&gt; &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvViH35wpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;IndianOcean&lt;/a&gt; &lt;font color=&quot;#ff0000&quot;&gt;#$PublicConstant&lt;/font&gt;)&lt;/code&gt;, as that states the falsehood that the IndianOcean itself -- which is &lt;i&gt;not&lt;/i&gt; a constant but a body of water -- is a public constant.  But we can express precisely what we want like this:
&lt;pre&gt;
  (&lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rBVVEokNxEdaAAACgydogAg&quot; class=&quot;cyc_term&quot;&gt;quotedIsa&lt;/a&gt; &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvViH35wpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;IndianOcean&lt;/a&gt; &lt;font color=&quot;#ff0000&quot;&gt;#$PublicConstant&lt;/font&gt;) .
&lt;/pre&gt;  
Now &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rBVVEokNxEdaAAACgydogAg&quot; class=&quot;cyc_term&quot;&gt;quotedIsa&lt;/a&gt; is a &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rv4oJWZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;MacroRelation&lt;/a&gt; (q.v.), and by its &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjg7JwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;expansion&lt;/a&gt; any given &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rBVVEokNxEdaAAACgydogAg&quot; class=&quot;cyc_term&quot;&gt;quotedIsa&lt;/a&gt; sentence is equivalent to some &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvViBBJwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;isa&lt;/a&gt; sentence with an &lt;i&gt;explicitly&lt;/i&gt; quoted first argument.  The sentence displayed above turns out to be equivalent to: 
&lt;pre&gt;
  (&lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvViBBJwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;isa&lt;/a&gt; (&lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rgGBbEkNuEdaAAACgydogAg&quot; class=&quot;cyc_term&quot;&gt;Quote&lt;/a&gt; &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvViH35wpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;IndianOcean&lt;/a&gt;) &lt;font color=&quot;#ff0000&quot;&gt;#$PublicConstant&lt;/font&gt;).
&lt;/pre&gt; 
But the &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rBVVEokNxEdaAAACgydogAg&quot; class=&quot;cyc_term&quot;&gt;quotedIsa&lt;/a&gt; version has two related practical advantages over the &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvViBBJwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;isa&lt;/a&gt; version.  First, the former is syntactically simpler than the latter.  Second, the simpler syntax of the former makes it easier to browse in the Knowedge Base: while the &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rBVVEokNxEdaAAACgydogAg&quot; class=&quot;cyc_term&quot;&gt;quotedIsa&lt;/a&gt; version is conveniently indexed under the KB Browser page for the constant &lt;code&gt;&lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvViH35wpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;IndianOcean&lt;/a&gt;&lt;/code&gt;, the &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvViBBJwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;isa&lt;/a&gt; version would apparently be indexed under a separate, brand new page for the term &lt;code&gt;(&lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rgGBbEkNuEdaAAACgydogAg&quot; class=&quot;cyc_term&quot;&gt;Quote&lt;/a&gt; &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvViH35wpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;IndianOcean&lt;/a&gt;)&lt;/code&gt;. Generalizing the point, &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rBVVEokNxEdaAAACgydogAg&quot; class=&quot;cyc_term&quot;&gt;quotedIsa&lt;/a&gt; lets us avoid having potentially to double the number of pages currently in the browser.
&lt;p/&gt;
For the semantically more complicated (but rarely encountered) case in which &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rBVVEokNxEdaAAACgydogAg&quot; class=&quot;cyc_term&quot;&gt;quotedIsa&lt;/a&gt;&apos;s first argument-place is filled with an &lt;i&gt;open&lt;/i&gt; expression, see the accompanying &lt;font color=&quot;#ff0000&quot;&gt;#$cyclistNotes&lt;/font&gt;.</rdfs:comment>
    <rdfs:label xml:lang="en">Quoted Isa</rdfs:label>
  </owl:ObjectProperty>

  <owl:Class rdf:about="Mx4r3CdT8HS7EdaAAACgyZzFrg">
    <cycAnnot:label xml:lang="en">PotentiallyPornRelated</cycAnnot:label>
    <rdfs:label xml:lang="en">potentially related to porn thing</rdfs:label>
    <rdfs:comment xml:lang="en">A FORT&apos;s having the attribute &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4r3CdT8HS7EdaAAACgyZzFrg&quot; class=&quot;cyc_term&quot;&gt;PotentiallyPornRelated&lt;/a&gt; indicates that any
query string that parses to it, whether vulgar or not, is such that we
think it might be after pornographic material. For technical reasons, &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4r3CdT8HS7EdaAAACgyZzFrg&quot; class=&quot;cyc_term&quot;&gt;PotentiallyPornRelated&lt;/a&gt;
will apply to any FORT that is &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rF_RUpnS7EdaAAACgyZzFrg&quot; class=&quot;cyc_term&quot;&gt;PresumedPornRelated&lt;/a&gt;, so the former means that
the FORT is at least potentially porn-related rather than only potentially
porn-related. For queries that parse to FORTs with the former but not the latter
attribute (FORTs which are only potentially porn-related)
we should not immediately offer any /Adult OD nodes but should instead offer a generic
euphemistic concept followup through which any pornographic nodes and followups
can be offered.</rdfs:comment>
  </owl:Class>

  <owl:Class rdf:about="&cyc;Mx4rv4C-JZwpEbGdrcN5Y29ycA">
    <cycAnnot:label xml:lang="en">Celebrity</cycAnnot:label>
    <rdfs:comment xml:lang="en">The collection of all celebrities. A type of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjma5wpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;FamousHuman&lt;/a&gt;.</rdfs:comment>
    <rdfs:label xml:lang="en">celebrity</rdfs:label>
  </owl:Class>

  <owl:ObjectProperty rdf:about="Mx4rTv-jk9SPTXa991kk5mAvHg">
    <cycAnnot:label xml:lang="en">wikipediaArticleName</cycAnnot:label>
    <rdfs:comment xml:lang="en">(&lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rTv-jk9SPTXa991kk5mAvHg&quot; class=&quot;cyc_term&quot;&gt;wikipediaArticleName&lt;/a&gt; THING NAME) means that in &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rtqXA6OC8QdiWC72DuLJdUw&quot; class=&quot;cyc_term&quot;&gt;Wikipedia_WebSite&lt;/a&gt; THING is described by an article with the title NAME</rdfs:comment>
    <rdfs:label xml:lang="en">Wikipedia Article Name</rdfs:label>
  </owl:ObjectProperty>

  <owl:Thing rdf:about="http://umbel.org/umbel/sc/Celebrity">
    <cycAnnot:label xml:lang="en">Celebrity</cycAnnot:label>
    <rdfs:comment xml:lang="en">The collection of all celebrities. A type of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjma5wpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;FamousHuman&lt;/a&gt;.</rdfs:comment>
    <rdfs:label xml:lang="en">celebrity</rdfs:label>
  </owl:Thing>

</rdf:RDF>
