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<!DOCTYPE rdf:RDF [
     <!ENTITY ocyc "http://sw.opencyc.org/concept/" >
     <!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;"
         xmlns:owl="&owl;"
         xmlns:xsd="&xsd;">

  <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="Mx4rvVjIQpwpEbGdrcN5Y29ycA">
    <rdfs:label xml:lang="en">carbon</rdfs:label>
    <rdfs:comment xml:lang="en">A piece of carbon; here on Earth, this is of course usually a solid, but it needn&apos;t necessarily be.</rdfs:comment>
    <cycAnnot:label xml:lang="en">Carbon</cycAnnot:label>
    <rdfs:subClassOf rdf:resource="Mx4rnznDrOqPQdaJ0d_et0Qtiw"/>
    <rdfs:subClassOf rdf:resource="Mx4rvVjZVpwpEbGdrcN5Y29ycA"/>
    <rdf:type rdf:resource="Mx4rBqLn_vAHQdaE5txkECInNw"/>
    <rdf:type rdf:resource="Mx4rvxc48pwpEbGdrcN5Y29ycA"/>
    <owl:sameAs rdf:resource="http://umbel.org/umbel/sc/Carbon"/>
    <owl:sameAs rdf:resource="http://dbpedia.org/resource/Carbon"/>
    <owl:sameAs rdf:resource="&cyc;Mx4rvVjIQpwpEbGdrcN5Y29ycA"/>
    <Mx4rwLSVCpwpEbGdrcN5Y29ycA xml:lang="en">C</Mx4rwLSVCpwpEbGdrcN5Y29ycA>
    <Mx4rTv-jk9SPTXa991kk5mAvHg>Carbon</Mx4rTv-jk9SPTXa991kk5mAvHg>
    <Mx4rNv0nbm4TTjOp7yhmnzOyqg>http://en.wikipedia.org/wiki/Carbon</Mx4rNv0nbm4TTjOp7yhmnzOyqg>
    <Mx4riWVFR6HJSpaEaHrcWS3MSA>http://www.w3.org/2006/03/wn/wn20/instances/synset-carbon-noun-1</Mx4riWVFR6HJSpaEaHrcWS3MSA>
  </owl:Class>

  <owl:Class rdf:about="Mx4rvVj5xpwpEbGdrcN5Y29ycA">
    <rdfs:subClassOf rdf:resource="Mx4rvVjIQpwpEbGdrcN5Y29ycA"/>
    <rdfs:label xml:lang="en">graphite</rdfs:label>
    <cycAnnot:label xml:lang="en">Graphite</cycAnnot:label>
    <rdfs:comment xml:lang="en">A soft, black, lustrous form of carbon.</rdfs:comment>
  </owl:Class>

  <owl:Class rdf:about="Mx4rvgC2UJwpEbGdrcN5Y29ycA">
    <rdfs:subClassOf rdf:resource="Mx4rvVjIQpwpEbGdrcN5Y29ycA"/>
    <rdfs:label xml:lang="en">diamond</rdfs:label>
    <cycAnnot:label xml:lang="en">Diamond</cycAnnot:label>
    <rdfs:comment xml:lang="en">The collection of all diamonds. A type of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvgEYcZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;SemiconductorStuff&lt;/a&gt;, &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rwQCJAJwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;Mineral&lt;/a&gt;, &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rPCwOrBENEduAAAACs6hRXg&quot; class=&quot;cyc_term&quot;&gt;ObjectSturdyWRTHumanActivity&lt;/a&gt;, &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvtOOLnS-EdaAAACgyZzFrg&quot; class=&quot;cyc_term&quot;&gt;Brittle&lt;/a&gt;, and &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjIQpwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;Carbon&lt;/a&gt;. The collection &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvgC2UJwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;Diamond&lt;/a&gt; is a &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rwMc3h5wpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;NaturalResourceType&lt;/a&gt; and an &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rv_dK_JwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;ElementStuffType&lt;/a&gt;.</rdfs:comment>
  </owl:Class>

  <owl:Class rdf:about="Mx4rvVj1OJwpEbGdrcN5Y29ycA">
    <rdfs:subClassOf rdf:resource="Mx4rvVjIQpwpEbGdrcN5Y29ycA"/>
    <rdfs:label xml:lang="en">wood coal</rdfs:label>
    <rdfs:comment xml:lang="en">The collection of all pieces of charcoal</rdfs:comment>
    <cycAnnot:label xml:lang="en">Charcoal</cycAnnot:label>
  </owl:Class>

  <owl:Thing rdf:about="http://umbel.org/umbel/sc/Carbon">
    <rdfs:label xml:lang="en">carbon</rdfs:label>
    <rdfs:comment xml:lang="en">A piece of carbon; here on Earth, this is of course usually a solid, but it needn&apos;t necessarily be.</rdfs:comment>
    <cycAnnot:label xml:lang="en">Carbon</cycAnnot:label>
  </owl:Thing>

  <owl:Class rdf:about="Mx4rBqLn_vAHQdaE5txkECInNw">
    <cycAnnot:label xml:lang="en">NonMetallicElementType</cycAnnot:label>
    <rdfs:comment xml:lang="en">A specialization of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVkIMJwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;ElementStuffTypeByNumberOfProtons&lt;/a&gt;. Instances are collections of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVkIuZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;ElementStuff&lt;/a&gt; that appear on the right side of the &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rv_VCjJwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;PeriodicTable&lt;/a&gt; (except for hydrogen).  At room temperature the elements can be solids, liquids, or gases.  These elements exhibit a number of different physical and chemical characteristics from metals.</rdfs:comment>
    <rdfs:label xml:lang="en">non-metallic element kind</rdfs: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:ObjectProperty rdf:about="Mx4riWVFR6HJSpaEaHrcWS3MSA">
    <cycAnnot:label xml:lang="en">seeAlsoURI</cycAnnot:label>
    <rdfs:comment xml:lang="en">&lt;code&gt;(&lt;a href=&quot;http://sw.opencyc.org/concept/Mx4riWVFR6HJSpaEaHrcWS3MSA&quot; class=&quot;cyc_term&quot;&gt;seeAlsoURI&lt;/a&gt; &lt;b&gt;THING&lt;/b&gt; &lt;b&gt;URI&lt;/b&gt;)&lt;/code&gt; means that a description of the resource identified by URI is likely to contain information pertinent to THING.  This predicate is roughly equivalent to rdfs:seeAlso.</rdfs:comment>
    <rdfs:label xml:lang="en">See Also URI</rdfs:label>
  </owl:ObjectProperty>

  <owl:Class rdf:about="Mx4rnznDrOqPQdaJ0d_et0Qtiw">
    <rdfs:label xml:lang="en">non-metallic element</rdfs:label>
    <rdfs:comment xml:lang="en">An instance of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvViGSpwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;TangibleStuffCompositionType&lt;/a&gt; and a specialization of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVkIuZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;ElementStuff&lt;/a&gt;.  Each instance of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVkIuZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;ElementStuff&lt;/a&gt; is a piece of tangible stuff, composed of a quantity of atoms, all of which are of the same non-metallic element.</rdfs:comment>
    <cycAnnot:label xml:lang="en">NonMetal</cycAnnot: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="&cyc;Mx4rvVjIQpwpEbGdrcN5Y29ycA">
    <rdfs:label xml:lang="en">carbon</rdfs:label>
    <rdfs:comment xml:lang="en">A piece of carbon; here on Earth, this is of course usually a solid, but it needn&apos;t necessarily be.</rdfs:comment>
    <cycAnnot:label xml:lang="en">Carbon</cycAnnot:label>
  </owl:Class>

  <owl:Class rdf:about="Mx4rvVjZVpwpEbGdrcN5Y29ycA">
    <rdfs:comment xml:lang="en">A specialization of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVj27ZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;PartiallyTangible&lt;/a&gt; and an instance of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvViRCJwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;MatterTypeByPhysicalState&lt;/a&gt;. Each instance of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjZVpwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;Solid_StateOfMatter&lt;/a&gt; is a solid quantity of matter. Pieces of matter in the solid state are at a sufficiently low enough temperature or high enough pressure for the particular type of matter involved that their molecules are bonded to each other by various sorts of forces, and don&apos;t move away from their neighbors. Solid objects are characterized at the macroscopic level by definite, persistent boundaries, independent of container.</rdfs:comment>
    <rdfs:label xml:lang="en">solid</rdfs:label>
    <cycAnnot:label xml:lang="en">Solid-StateOfMatter</cycAnnot: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://dbpedia.org/resource/Carbon">
    <rdfs:label xml:lang="en">carbon</rdfs:label>
    <rdfs:comment xml:lang="en">A piece of carbon; here on Earth, this is of course usually a solid, but it needn&apos;t necessarily be.</rdfs:comment>
    <cycAnnot:label xml:lang="en">Carbon</cycAnnot:label>
  </owl:Thing>

  <owl:Class rdf:about="Mx4rvxc48pwpEbGdrcN5Y29ycA">
    <cycAnnot:label xml:lang="en">OrganismConstituentType</cycAnnot:label>
    <rdfs:label xml:lang="en">type of organism constituent</rdfs:label>
    <rdfs:comment xml:lang="en">The collection of all collections whose instances are frequently &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjzYpwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;physicalDecompositions&lt;/a&gt; of an &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjE1pwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;Organism_Whole&lt;/a&gt;. 
Instances of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvxc48pwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;OrganismConstituentType&lt;/a&gt; include all specs of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rwQBXZpwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;OrganismPart&lt;/a&gt;, as well as things like (&lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rwPzX35wpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;LiquidFn&lt;/a&gt; &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjAHZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;Water&lt;/a&gt;) and &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjuY5wpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;Cell&lt;/a&gt;.</rdfs:comment>
  </owl:Class>

</rdf:RDF>
