]> 2008/06/10 OpenCyc Knowledge Base Copyright© 2001-2008 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 "Work" 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. externalID 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. label 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. AFewExamplesOfCustomaryPaths-PathTraversal-Topic A few examples of customary paths path traversal topic Pipe-GenericConduit A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjZOpwpEbGdrcN5Y29ycA" class="cyc_term">FluidConduit</a>; the collection of all enclosed tubular fluid conduits with openings at both ends. <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViZ_ZwpEbGdrcN5Y29ycA" class="cyc_term">Pipe_GenericConduit</a> encompasses both human-made pipes as well as natural pipes, found naturally occurring in the environment or in an organism's body (like <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjxlpwpEbGdrcN5Y29ycA" class="cyc_term">BloodVessel</a>s). pipe Stream watercourse A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViE_JwpEbGdrcN5Y29ycA" class="cyc_term">BodyOfWater</a>, <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvakVVZwpEbGdrcN5Y29ycA" class="cyc_term">InanimateObject_Natural</a>, and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViVVZwpEbGdrcN5Y29ycA" class="cyc_term">FlowPath</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVkHdJwpEbGdrcN5Y29ycA" class="cyc_term">Stream</a> is a natural body of water that flows when it is not frozen. A stream can either be a great river (see <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVkHM5wpEbGdrcN5Y29ycA" class="cyc_term">River</a>) or a tiny creek (see <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViptpwpEbGdrcN5Y29ycA" class="cyc_term">Creek</a>). Most often, streams are filled with fresh water, but can in certain cases be filled with saline or brackish water (see <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4r0Ie75iTfQdeUedu47vi82g" class="cyc_term">TidalCreek</a>). Every non-frozen stream flows in (see <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVi8V5wpEbGdrcN5Y29ycA" class="cyc_term">in_ContOpen</a>) some conduit (see <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjZOpwpEbGdrcN5Y29ycA" class="cyc_term">FluidConduit</a>) such as a streambed or riverbed. Notable instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVkHdJwpEbGdrcN5Y29ycA" class="cyc_term">Stream</a> include <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjR_5wpEbGdrcN5Y29ycA" class="cyc_term">AmazonRiver</a>, <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVi_yZwpEbGdrcN5Y29ycA" class="cyc_term">LittleMissouriRiver</a>, <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVi9JZwpEbGdrcN5Y29ycA" class="cyc_term">WoundedKnee_Creek</a>. Note that riverbanks are not streams nor are they parts of streams, but rather they mark the edges of streams. highway Highway A specialization of both <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvyNjbZwpEbGdrcN5Y29ycA" class="cyc_term">Roadway</a> and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViTEpwpEbGdrcN5Y29ycA" class="cyc_term">PublicProperty</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjVYZwpEbGdrcN5Y29ycA" class="cyc_term">Highway</a> is a major road open to public use. railroad Railway A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvWjXAJwpEbGdrcN5Y29ycA" class="cyc_term">TransportFacility</a> and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVkCmpwpEbGdrcN5Y29ycA" class="cyc_term">PathForWheeledVehicles</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVi-lJwpEbGdrcN5Y29ycA" class="cyc_term">Railway</a> is a pathway made of railroad tracks and used for train transportation. It includes main lines and sidings. path traversal topic PathTraversal-Topic A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwIE23ZwpEbGdrcN5Y29ycA" class="cyc_term">TimeDependentCollection</a> (q.v.). This is the collection of all and only those collections <code>COL</code> such that any thing's being an instance of <code>COL</code> depends on the current state of the <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjqoZwpEbGdrcN5Y29ycA" class="cyc_term">CycKB</a>. Such a <code>COL</code> corresponds to a property defined (at least partly) in terms of the contents, features, or implementation of the Cyc Knowledge Base itself, as opposed to a property that "exists out there" in the KB-independent world. For example, <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvV281JwpEbGdrcN5Y29ycA" class="cyc_term">CycLAssertion</a> is a KB-dependent collection, membership in which requires of a given CycL sentence that it has in fact been asserted to the KB. <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViAoJwpEbGdrcN5Y29ycA" class="cyc_term">CycLSentence</a> is also KB-dependent, as being a CycL sentence requires being composed (ultimately) out of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvu6KTZwpEbGdrcN5Y29ycA" class="cyc_term">CycLReifiedDenotationalTerm</a>s (and perhaps variables) -- i.e. terms that are currently reified in the KB. Conversely, <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rv5ddsJwpEbGdrcN5Y29ycA" class="cyc_term">Sentence</a> is not a KB-dependent collection. See also <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvip9N5wpEbGdrcN5Y29ycA" class="cyc_term">KBDependentRelation</a>. KB dependent collection KBDependentCollection AFewExamplesOfCustomaryPaths-PathTraversal-Topic A few examples of customary paths path traversal topic CycVocabularyTopic An instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvprlOZwpEbGdrcN5Y29ycA" class="cyc_term">FacetingCollectionType</a> and a specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rgQsP1F2xEdif1wACs2IMlQ" class="cyc_term">Topic</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rAmoSCGJbQdiSXZJvYiNhkQ" class="cyc_term">CycVocabularyTopic</a> is a collection of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViA9JwpEbGdrcN5Y29ycA" class="cyc_term">Thing</a>s falling under a topic for which some Cyc Vocabulary exists. <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rgQsP1F2xEdif1wACs2IMlQ" class="cyc_term">Topic</a> is neither a strict [<a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvcZ1FpwpEbGdrcN5Y29ycA" class="cyc_term">facets_Strict</a>] nor a covering [<a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rv86JWpwpEbGdrcN5Y29ycA" class="cyc_term">facets_Covering</a>] faceting of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViA9JwpEbGdrcN5Y29ycA" class="cyc_term">Thing</a>: many <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViA9JwpEbGdrcN5Y29ycA" class="cyc_term">Thing</a>s may be instances of no <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rgQsP1F2xEdif1wACs2IMlQ" class="cyc_term">Topic</a>, or of multiple <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rgQsP1F2xEdif1wACs2IMlQ" class="cyc_term">Topic</a>s. cyc vocabulary topic AFewExamplesOfCustomaryPaths-PathTraversal-Topic A few examples of customary paths path traversal topic