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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="Mx4rwPRtHpwpEbGdrcN5Y29ycA">
    <cycAnnot:label xml:lang="en">Coal</cycAnnot:label>
    <rdfs:comment xml:lang="en">Carbonized vegetable matter, usually black, usually used as fuel.</rdfs:comment>
    <rdfs:label xml:lang="en">coal</rdfs:label>
    <rdfs:subClassOf rdf:resource="Mx4rwVOKFJwpEbGdrcN5Y29ycA"/>
    <rdfs:subClassOf rdf:resource="Mx4rvVjD0JwpEbGdrcN5Y29ycA"/>
    <rdfs:subClassOf rdf:resource="Mx4r1ID_JnS_EdaAAACgyZzFrg"/>
    <rdfs:subClassOf rdf:resource="Mx4rvVjVWpwpEbGdrcN5Y29ycA"/>
    <rdf:type rdf:resource="Mx4rvViGSpwpEbGdrcN5Y29ycA"/>
    <rdf:type rdf:resource="Mx4rwMc3h5wpEbGdrcN5Y29ycA"/>
    <owl:sameAs rdf:resource="&cyc;Mx4rwPRtHpwpEbGdrcN5Y29ycA"/>
    <owl:sameAs rdf:resource="http://dbpedia.org/resource/Coal"/>
    <owl:sameAs rdf:resource="http://umbel.org/umbel/sc/Coal"/>
    <Mx4rTv-jk9SPTXa991kk5mAvHg>Coal</Mx4rTv-jk9SPTXa991kk5mAvHg>
    <Mx4rNv0nbm4TTjOp7yhmnzOyqg>http://en.wikipedia.org/wiki/Coal</Mx4rNv0nbm4TTjOp7yhmnzOyqg>
    <Mx4riWVFR6HJSpaEaHrcWS3MSA>http://www.w3.org/2006/03/wn/wn20/instances/synset-coal-noun-1</Mx4riWVFR6HJSpaEaHrcWS3MSA>
  </owl:Class>

  <owl:Class rdf:about="Mx4rwVOKFJwpEbGdrcN5Y29ycA">
    <cycAnnot:label xml:lang="en">FossilFuel</cycAnnot:label>
    <rdfs:comment xml:lang="en">This is the collection of instances of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVitW5wpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;CombustibleFuelSubstance&lt;/a&gt; which are either naturally created from the decay of organic matter or are refined from
such.</rdfs:comment>
    <rdfs:label xml:lang="en">fossil fuel</rdfs:label>
  </owl:Class>

  <owl:Thing rdf:about="http://umbel.org/umbel/sc/Coal">
    <cycAnnot:label xml:lang="en">Coal</cycAnnot:label>
    <rdfs:comment xml:lang="en">Carbonized vegetable matter, usually black, usually used as fuel.</rdfs:comment>
    <rdfs:label xml:lang="en">coal</rdfs:label>
  </owl:Thing>

  <owl:Class rdf:about="&cyc;Mx4rwPRtHpwpEbGdrcN5Y29ycA">
    <cycAnnot:label xml:lang="en">Coal</cycAnnot:label>
    <rdfs:comment xml:lang="en">Carbonized vegetable matter, usually black, usually used as fuel.</rdfs:comment>
    <rdfs:label xml:lang="en">coal</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:Thing rdf:about="http://dbpedia.org/resource/Coal">
    <cycAnnot:label xml:lang="en">Coal</cycAnnot:label>
    <rdfs:comment xml:lang="en">Carbonized vegetable matter, usually black, usually used as fuel.</rdfs:comment>
    <rdfs:label xml:lang="en">coal</rdfs:label>
  </owl:Thing>

  <owl:Class rdf:about="Mx4rwMc3h5wpEbGdrcN5Y29ycA">
    <rdfs:comment xml:lang="en">The collection of collections of things that are useful in nature.</rdfs:comment>
    <rdfs:label xml:lang="en">natural resource</rdfs:label>
    <cycAnnot:label xml:lang="en">NaturalResourceType</cycAnnot:label>
  </owl:Class>

  <owl:Class rdf:about="Mx4rvViGSpwpEbGdrcN5Y29ycA">
    <cycAnnot:label xml:lang="en">TangibleStuffCompositionType</cycAnnot:label>
    <rdfs:label xml:lang="en">tangible stuff type</rdfs:label>
    <rdfs:comment xml:lang="en">A collection of collections and a specialization of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVny6pwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;ExistingStuffType&lt;/a&gt;.  Instances are subcollections of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVj27ZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;PartiallyTangible&lt;/a&gt; whose membership is based only on the physical and/or chemical composition of their instances. &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvViGSpwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;TangibleStuffCompositionType&lt;/a&gt; does not have as instances collections whose instances are determined _solely_ by the physical state they are in -- for that, see &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvgDEAJwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;TangibleStuffStateType&lt;/a&gt;.  However, many substances that chemically break down before melting (e.g. &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjc_ZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;FattyTissue&lt;/a&gt;) _are_ included in this collection, even though they exist solely in one physical state.  

The collection &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjAHZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;Water&lt;/a&gt; is an instance of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvViGSpwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;TangibleStuffCompositionType&lt;/a&gt;, as instances of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjAHZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;Water&lt;/a&gt; are all pieces of substance with the chemical composition H20.  On the other hand , the collection of all pieces of ice (i.e. (&lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rwPzX0JwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;SolidFn&lt;/a&gt; &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjAHZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;Water&lt;/a&gt;)) is not a &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvViGSpwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;TangibleStuffCompositionType&lt;/a&gt;, because membership in that collection depends on the substance&apos;s composition _and_ on its physical state. 

&lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVikqZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;TalcumPowder&lt;/a&gt; is not an instance of this collection because a fused mass of the substance would no longer be powder, but would still be of the same  &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvViGSpwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;TangibleStuffCompositionType&lt;/a&gt;.

Further instances of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvViGSpwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;TangibleStuffCompositionType&lt;/a&gt; are &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVi30pwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;Nylon&lt;/a&gt;, &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjxdpwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;GasolineFuel&lt;/a&gt;, &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjc_ZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;FattyTissue&lt;/a&gt;, &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVj8apwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;Nitrogen&lt;/a&gt;, and &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvViG-5wpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;Glass&lt;/a&gt;. An important specialization of this collection is &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjNlZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;ChemicalSubstanceType&lt;/a&gt; -- those substance types defined solely by their chemical formulae.</rdfs:comment>
  </owl:Class>

  <owl:Class rdf:about="Mx4r1ID_JnS_EdaAAACgyZzFrg">
    <rdfs:comment xml:lang="en">The color black.</rdfs:comment>
    <rdfs:label xml:lang="en">black</rdfs:label>
    <cycAnnot:label xml:lang="en">BlackColor</cycAnnot:label>
  </owl:Class>

  <owl:Class rdf:about="Mx4rvVjVWpwpEbGdrcN5Y29ycA">
    <rdfs:comment xml:lang="en">An instance of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVny6pwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;ExistingStuffType&lt;/a&gt; and a sub-collection of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVj27ZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;PartiallyTangible&lt;/a&gt;.  Each instance of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjVWpwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;NaturalTangibleStuff&lt;/a&gt; is a naturally occurring partially tangible thing. Specializations of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjVWpwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;NaturalTangibleStuff&lt;/a&gt; include &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rwPuiRJwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;LandStuff&lt;/a&gt;, &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVimxJwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;Wood&lt;/a&gt;, and &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjADJwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;Air&lt;/a&gt;.  Man-made materials are &lt;i&gt;not&lt;/i&gt; instances of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjVWpwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;NaturalTangibleStuff&lt;/a&gt;.</rdfs:comment>
    <rdfs:label xml:lang="en">naturally occurring tangible thing</rdfs:label>
    <cycAnnot:label xml:lang="en">NaturalTangibleStuff</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:Class rdf:about="Mx4rvVjD0JwpEbGdrcN5Y29ycA">
    <cycAnnot:label xml:lang="en">OrganicMaterial</cycAnnot:label>
    <rdfs:label xml:lang="en">organic substance</rdfs:label>
    <rdfs:comment xml:lang="en">A collection of tangible things.  Each instance of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjD0JwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;OrganicMaterial&lt;/a&gt; is a tangible thing composed of one or more types of organic &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjwspwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;Molecule&lt;/a&gt;.  Instances of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjD0JwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;OrganicMaterial&lt;/a&gt; usually have their origin in the bodies (or other products) of living things.  Since some organic substances can be synthesized, &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjD0JwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;OrganicMaterial&lt;/a&gt; is not a subcollection of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjVWpwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;NaturalTangibleStuff&lt;/a&gt;.  Chemically, instances of &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjD0JwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;OrganicMaterial&lt;/a&gt; have fairly (or very) complex carbon-based structures.  Examples include all instances of the collections &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjZ6ZwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;Oil&lt;/a&gt;, &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvWXHLJwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;DNAStuff&lt;/a&gt;, &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVim-JwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;Alcohol_Compound&lt;/a&gt;, &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvVjL-5wpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;Ivory&lt;/a&gt;, and &lt;a href=&quot;http://sw.opencyc.org/concept/Mx4rvViAHJwpEbGdrcN5Y29ycA&quot; class=&quot;cyc_term&quot;&gt;AnimalBodyPart&lt;/a&gt;.</rdfs:comment>
  </owl:Class>

</rdf:RDF>
