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         xmlns="http://sw.opencyc.org/concept/"
         xmlns:cycAnnot="http://sw.cyc.com/CycAnnotations_v1#"
         xmlns:rdf="&rdf;"
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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="Mx4rvVjpapwpEbGdrcN5Y29ycA">
    <rdfs:comment xml:lang="en">The electrical component used to transform sound into electrical signals</rdfs:comment>
    <cycAnnot:label xml:lang="en">Microphone</cycAnnot:label>
    <rdfs:label xml:lang="en">microphone</rdfs:label>
    <rdfs:subClassOf rdf:resource="Mx4rRLrrNqUjEd2AAABQjYGu0g"/>
    <rdfs:subClassOf rdf:resource="Mx4rvf-bUJwpEbGdrcN5Y29ycA"/>
    <rdfs:subClassOf rdf:resource="Mx4rvViBMZwpEbGdrcN5Y29ycA"/>
    <rdfs:subClassOf rdf:resource="Mx8Ngx4rwEcGC5wpEbGdrcN5Y29ycB4rvVjbwpwpEbGdrcN5Y29ycB4rcLOYUPK4QdeHfvXnrK8wHQ"/>
    <rdf:type rdf:resource="Mx8Ngh4rvczo65wpEbGdrcN5Y29ycB4rv3ybfZwpEbGdrcN5Y29ycA"/>
    <rdf:type rdf:resource="Mx4rejmDbrF_QdeIENT1qpbYzQ"/>
    <rdf:type rdf:resource="Mx4rBIWPKBygQdiAe4vGNtryvQ"/>
    <rdf:type rdf:resource="Mx4rpPHhAOB1EdqAAAACs6hRXg"/>
    <owl:sameAs rdf:resource="&cyc;Mx4rvVjpapwpEbGdrcN5Y29ycA"/>
    <owl:sameAs rdf:resource="http://umbel.org/umbel/sc/Microphone"/>
    <owl:sameAs rdf:resource="http://dbpedia.org/resource/Microphone"/>
    <Mx4rBVVEokNxEdaAAACgydogAg rdf:resource="Mx4rigaPQn7QQdmEQasQQEZn_A"/>
    <Mx4rZOAVeiYGEdqAAAACs2IMmw rdf:resource="Mx8Ngx4rwROrhZwpEbGdrcN5Y29ycB4rvVkGrZwpEbGdrcN5Y29ycB4rvVif9pwpEbGdrcN5Y29ycA"/>
    <Mx4rwLSVCpwpEbGdrcN5Y29ycA xml:lang="en">mike</Mx4rwLSVCpwpEbGdrcN5Y29ycA>
    <Mx4rwLSVCpwpEbGdrcN5Y29ycA xml:lang="en">mikes</Mx4rwLSVCpwpEbGdrcN5Y29ycA>
    <Mx4rwLSVCpwpEbGdrcN5Y29ycA xml:lang="en">microphones</Mx4rwLSVCpwpEbGdrcN5Y29ycA>
    <Mx4rTv-jk9SPTXa991kk5mAvHg>Microphone</Mx4rTv-jk9SPTXa991kk5mAvHg>
    <Mx4rNv0nbm4TTjOp7yhmnzOyqg>http://en.wikipedia.org/wiki/Microphone</Mx4rNv0nbm4TTjOp7yhmnzOyqg>
  </owl:Class>

  <owl:Class rdf:about="Mx4rRLrrNqUjEd2AAABQjYGu0g">
    <rdfs:comment xml:lang="en">A specialization of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVi-X5wpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;ElectronicComponent&lt;/a&gt;.  Each instance of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rRLrrNqUjEd2AAABQjYGu0g&quot; class=&quot;cyc_term&quot;&gt;Transducer&lt;/a&gt; is a device used for converting one type of energy into another.</rdfs:comment>
    <rdfs:label xml:lang="en">transducer</rdfs:label>
    <cycAnnot:label xml:lang="en">Transducer</cycAnnot:label>
  </owl:Class>

  <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:Thing rdf:about="http://umbel.org/umbel/sc/Microphone">
    <cycAnnot:label xml:lang="en">Microphone</cycAnnot:label>
    <rdfs:comment xml:lang="en">The electrical component used to transform sound into electrical signals</rdfs:comment>
    <rdfs:label xml:lang="en">microphone</rdfs:label>
  </owl:Thing>

  <owl:Thing rdf:about="http://dbpedia.org/resource/Microphone">
    <cycAnnot:label xml:lang="en">Microphone</cycAnnot:label>
    <rdfs:comment xml:lang="en">The electrical component used to transform sound into electrical signals</rdfs:comment>
    <rdfs:label xml:lang="en">microphone</rdfs:label>
  </owl:Thing>

  <owl:Class rdf:about="Mx8Ngh4rvczo65wpEbGdrcN5Y29ycB4rv3ybfZwpEbGdrcN5Y29ycA">
    <cycAnnot:label xml:lang="en">(EquipmentTypeForEventTypeFn KaraokeEvent)</cycAnnot:label>
    <rdfs:label xml:lang="en">equipment for karaoke</rdfs:label>
  </owl:Class>

  <owl:ObjectProperty rdf:about="Mx4rZOAVeiYGEdqAAAACs2IMmw">
    <rdfs:label xml:lang="en">BT</rdfs:label>
    <cycAnnot:label xml:lang="en">broaderTerm</cycAnnot:label>
    <rdfs:comment xml:lang="en">&lt;code&gt;(&lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rZOAVeiYGEdqAAAACs2IMmw&quot; class=&quot;cyc_term&quot;&gt;broaderTerm&lt;/a&gt; &lt;b&gt;TERM1&lt;/b&gt; &lt;b&gt;TERM2&lt;/b&gt;)&lt;/code&gt; means that &lt;code&gt;&lt;b&gt;TERM2&lt;/b&gt;&lt;/code&gt; is &lt;i&gt;broader&lt;/i&gt; than &lt;code&gt;&lt;b&gt;TERM1&lt;/b&gt;&lt;/code&gt;, in an extremely general sense of &amp;quot;broader&amp;quot;.  For example,  &lt;code&gt;&lt;b&gt;TERM2&lt;/b&gt;&lt;/code&gt; is, in the relevant sense, broader than &lt;code&gt;&lt;b&gt;TERM1&lt;/b&gt;&lt;/code&gt; if any of the following hold:&lt;br&gt;&lt;br&gt;

 &lt;code&gt;&lt;b&gt;TERM2&lt;/b&gt;&lt;/code&gt; is a collection that subsumes &lt;code&gt;&lt;b&gt;TERM1&lt;/b&gt;&lt;/code&gt;; &lt;br&gt;
 &lt;code&gt;&lt;b&gt;TERM2&lt;/b&gt;&lt;/code&gt; is a collection that has &lt;code&gt;&lt;b&gt;TERM1&lt;/b&gt;&lt;/code&gt; as an instance; &lt;br&gt;
 &lt;code&gt;&lt;b&gt;TERM2&lt;/b&gt;&lt;/code&gt; is a collection, instances of which have instances of the collection &lt;code&gt;&lt;b&gt;TERM1&lt;/b&gt;&lt;/code&gt; as parts; &lt;br&gt;
 &lt;code&gt;&lt;b&gt;TERM2&lt;/b&gt;&lt;/code&gt; has &lt;code&gt;&lt;b&gt;TERM1&lt;/b&gt;&lt;/code&gt; as a part; &lt;br&gt;&lt;br&gt;

This list of reasons for why &lt;code&gt;(&lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rZOAVeiYGEdqAAAACs2IMmw&quot; class=&quot;cyc_term&quot;&gt;broaderTerm&lt;/a&gt; &lt;b&gt;TERM1&lt;/b&gt; &lt;b&gt;TERM2&lt;/b&gt;)&lt;/code&gt; could hold is not exhaustive, but it should give a good indication of how general the &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rZOAVeiYGEdqAAAACs2IMmw&quot; class=&quot;cyc_term&quot;&gt;broaderTerm&lt;/a&gt; relation actually is.</rdfs:comment>
  </owl:ObjectProperty>

  <owl:Class rdf:about="Mx4rpPHhAOB1EdqAAAACs6hRXg">
    <cycAnnot:label xml:lang="en">SpatiallyDisjointObjectType</cycAnnot:label>
    <rdfs:label xml:lang="en">type of object whose instances do not physically overlap</rdfs:label>
    <rdfs:comment xml:lang="en">A collection of collections and a specialization of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVirnZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;ObjectType&lt;/a&gt; (q.v.). Each instance of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rpPHhAOB1EdqAAAACs6hRXg&quot; class=&quot;cyc_term&quot;&gt;SpatiallyDisjointObjectType&lt;/a&gt; is a collection C of spatial things (see &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjpUZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;SpatialThing&lt;/a&gt;), where each of the spatial things in C is spatially disjoint with the other spatial things in C.
&lt;p/&gt;
For example, the collection &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjaoJwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;Dog&lt;/a&gt; is an instance of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rpPHhAOB1EdqAAAACs6hRXg&quot; class=&quot;cyc_term&quot;&gt;SpatiallyDisjointObjectType&lt;/a&gt;, since dogs do not spatially overlap.  Even pregnant dogs do not spatially overlap the pups they bear; rather, pregnant dogs contain their unborn pups.  Other instances of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rpPHhAOB1EdqAAAACs6hRXg&quot; class=&quot;cyc_term&quot;&gt;SpatiallyDisjointObjectType&lt;/a&gt; include &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rwVGrQ5wpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;LatitudeLine&lt;/a&gt;, &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvW4n1pwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;CompactDisc_Audio&lt;/a&gt;, and &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rwR7UWZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;PlanetaryBody&lt;/a&gt;.  An important specialization of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rpPHhAOB1EdqAAAACs6hRXg&quot; class=&quot;cyc_term&quot;&gt;SpatiallyDisjointObjectType&lt;/a&gt; is &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjlE5wpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;SpatiallyDisjointRegionType&lt;/a&gt; (a collection of specializations of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvViACZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;GeographicalRegion&lt;/a&gt;, such as &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjnZ5wpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;City&lt;/a&gt; and &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rwT-n15wpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;TrueContinent&lt;/a&gt;).</rdfs:comment>
  </owl:Class>

  <owl:Class rdf:about="Mx4rigaPQn7QQdmEQasQQEZn_A">
    <rdfs:comment xml:lang="en">The collection of constants relating to Sensors and sense perception events.</rdfs:comment>
    <rdfs:label xml:lang="en">sensor ontology constant</rdfs:label>
    <cycAnnot:label xml:lang="en">SensorOntologyConstant</cycAnnot:label>
  </owl:Class>

  <owl:Class rdf:about="Mx4rBIWPKBygQdiAe4vGNtryvQ">
    <rdfs:label xml:lang="en">functional kind of electronic component</rdfs:label>
    <cycAnnot:label xml:lang="en">ElectronicComponentTypeByFunction</cycAnnot:label>
    <rdfs:comment xml:lang="en">A specialization of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvWXYgJwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;ExistingObjectType&lt;/a&gt;. Each instance of this (second-order) collection is a spec of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVi-X5wpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;ElectronicComponent&lt;/a&gt; differentiated only by its intended function (for example, &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVi5dJwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;Capacitor&lt;/a&gt;).</rdfs:comment>
  </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="Mx8Ngx4rwEcGC5wpEbGdrcN5Y29ycB4rvVjbwpwpEbGdrcN5Y29ycB4rcLOYUPK4QdeHfvXnrK8wHQ">
    <rdfs:label xml:lang="en">vibration sensor that is also a sensor</rdfs:label>
    <cycAnnot:label xml:lang="en">(CollectionIntersection2Fn VibrationThroughAMediumSensor Sensor-Device)</cycAnnot:label>
  </owl:Class>

  <owl:Class rdf:about="Mx8Ngx4rwROrhZwpEbGdrcN5Y29ycB4rvVkGrZwpEbGdrcN5Y29ycB4rvVif9pwpEbGdrcN5Y29ycA">
    <cycAnnot:label xml:lang="en">(CollectionDifferenceFn HumanScaleObject SpaceInAHOC)</cycAnnot:label>
    <rdfs:label xml:lang="en">human-scale object that is not an indoor space</rdfs:label>
  </owl:Class>

  <owl:Class rdf:about="Mx4rvf-bUJwpEbGdrcN5Y29ycA">
    <rdfs:label xml:lang="en">product</rdfs:label>
    <cycAnnot:label xml:lang="en">ManufacturedGoods</cycAnnot:label>
    <rdfs:comment xml:lang="en">The collection of all &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVkH_ZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;Artifact&lt;/a&gt;s that are made or processed in large-scale industrial operations for distribution (normally sale) to agents outside the manufacturing organization.  This includes manufactured stuff, e.g. Finlandia vodka; refined ore, e.g. iron; otherwise procesed natural material, e.g. cut diamonds, as well as manufactured objects.  This collection excludes handicrafts; privately made stuff, e.g. moonshine; and other artifacts produced by one or a few people on a small scale.</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="&cyc;Mx4rvVjpapwpEbGdrcN5Y29ycA">
    <cycAnnot:label xml:lang="en">Microphone</cycAnnot:label>
    <rdfs:comment xml:lang="en">The electrical component used to transform sound into electrical signals</rdfs:comment>
    <rdfs:label xml:lang="en">microphone</rdfs:label>
  </owl:Class>

  <owl:Class rdf:about="Mx4rejmDbrF_QdeIENT1qpbYzQ">
    <rdfs:comment xml:lang="en">An instance of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rHQdVmB_TEdaAAABQ2rksLw&quot; class=&quot;cyc_term&quot;&gt;SecondOrderCollection&lt;/a&gt; and a specialization of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rwO3H5pwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;ArtifactType&lt;/a&gt;.  Each instance of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rejmDbrF_QdeIENT1qpbYzQ&quot; class=&quot;cyc_term&quot;&gt;ArtifactTypeByGenericCategory&lt;/a&gt; is a collection of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVkH_ZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;Artifact&lt;/a&gt;s grouped together according to some feature(s) other than brand or model.</rdfs:comment>
    <rdfs:label xml:lang="en">kind of artifact not distinguished by brand or model</rdfs:label>
    <cycAnnot:label xml:lang="en">ArtifactTypeByGenericCategory</cycAnnot:label>
  </owl:Class>

  <owl:Class rdf:about="Mx4rvViBMZwpEbGdrcN5Y29ycA">
    <cycAnnot:label xml:lang="en">PortableObject</cycAnnot:label>
    <rdfs:comment xml:lang="en">A specialization of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVkGrZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;HumanScaleObject&lt;/a&gt; (q.v.).  Each instance of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvViBMZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;PortableObject&lt;/a&gt; is a tangible object that is not &amp;quot;fastened down&amp;quot; and is light enough for an average human (or, more to the point, for its average intended user) to move easily.  
&lt;p/&gt;
For many instances of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvViBMZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;PortableObject&lt;/a&gt;, portability is important for the fulfillment of their primary functions;  for example, an article of clothing (an instance of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVkEoJwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;SomethingToWear&lt;/a&gt;),  a hand-guided tool (an instance of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVig-pwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;HandTool&lt;/a&gt;), a coin or dollar bill (an instance of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjMQpwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;Currency&lt;/a&gt;), or a flashlight (an instance of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjc1pwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;Flashlight&lt;/a&gt;) would be pretty useless if they weren&apos;t portable.  In other cases, making a device portable, or making a portable version of a device, simply provides a convenience, as with the subcollections &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rwPvPDJwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;PortableTelevision&lt;/a&gt; and &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjYqZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;PortableStereoSystem&lt;/a&gt;.  
&lt;p/&gt;
Note that &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rwPznZJwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;Tool&lt;/a&gt; is not a subcollection of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvViBMZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;PortableObject&lt;/a&gt;, since many tools are heavy and/or stationary.  A borderline example of a &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvViBMZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;PortableObject&lt;/a&gt; would be a heart/lung machine; although the beneficiary of its primary function is in no position to move it around, the physicians and nurses who also are &amp;quot;using&amp;quot; it can and do exactly that.  The same goes for a playpen; the kids in it had better &lt;i&gt;not&lt;/i&gt; be able to move it around, but the adults who set it up and put them there can and do move it.   A borderline non-example would be a car; even though its user can make it move around, that is more a controlling action than a transporting action -- i.e., the car is doing the transporting in that case, not the driver.  A borderline example is a cat; even though it moves under its own power, it is light enough for its owner to pick it up and move it around.  A borderline example is a bed or a dresser; though too heavy to lift, its owners can generally move it around (by sliding, disassembling and reassembling, and so on).</rdfs:comment>
    <rdfs:label xml:lang="en">portable object</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>

</rdf:RDF>
