]> 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. A <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rAmoSCGJbQdiSXZJvYiNhkQ" class="cyc_term">CycVocabularyTopic</a> and a <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rtGXkHpNaEdqAAAACs0uFOQ" class="cyc_term">KBDependentCollection</a>. weather objects weather topic WeatherObjects-Weather-Topic HailStone hailstone A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVj0-5wpEbGdrcN5Y29ycA" class="cyc_term">PrecipitationParticle</a>. Instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVj1dJwpEbGdrcN5Y29ycA" class="cyc_term">HailStone</a> are small particles emitted from clouds in instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVibZZwpEbGdrcN5Y29ycA" class="cyc_term">HailProcess</a> (q.v.). Instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVj1dJwpEbGdrcN5Y29ycA" class="cyc_term">HailStone</a> usually consist of several concentric layers of ice. raindrop The collection of drops of liquid water emitted by clouds in instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVj_WpwpEbGdrcN5Y29ycA" class="cyc_term">RainProcess</a>. Raindrop fog Fog The collection of clouds (instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVj0jZwpEbGdrcN5Y29ycA" class="cyc_term">CloudOfH2O</a>) that cover a <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViACZwpEbGdrcN5Y29ycA" class="cyc_term">GeographicalRegion</a> at ground-level. CloudInSky A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVj0jZwpEbGdrcN5Y29ycA" class="cyc_term">CloudOfH2O</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwPugRJwpEbGdrcN5Y29ycA" class="cyc_term">CloudInSky</a> is a cloud located in the sky over some instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViACZwpEbGdrcN5Y29ycA" class="cyc_term">GeographicalRegion</a>. Since <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwPugRJwpEbGdrcN5Y29ycA" class="cyc_term">CloudInSky</a> is a specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVj0jZwpEbGdrcN5Y29ycA" class="cyc_term">CloudOfH2O</a>, each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwPugRJwpEbGdrcN5Y29ycA" class="cyc_term">CloudInSky</a> must be primarily composed of water particles. cloud snowflake Snowflake A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVj0-5wpEbGdrcN5Y29ycA" class="cyc_term">PrecipitationParticle</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVi-g5wpEbGdrcN5Y29ycA" class="cyc_term">Snowflake</a> is a frozen water crystal emitted by a cloud during an instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVkAX5wpEbGdrcN5Y29ycA" class="cyc_term">SnowProcess</a> (q.v.). The collection of clouds that emit <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVj0-5wpEbGdrcN5Y29ycA" class="cyc_term">PrecipitationParticle</a>s in instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVj-zpwpEbGdrcN5Y29ycA" class="cyc_term">PrecipitationProcess</a>. PrecipitationCloud precipitation cloud precipitate A specialization of both <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/Mx4rvVj0fpwpEbGdrcN5Y29ycA" class="cyc_term">Particle</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVj0-5wpEbGdrcN5Y29ycA" class="cyc_term">PrecipitationParticle</a> is a particle of liquid or solid water emitted by a cloud in some instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVj-zpwpEbGdrcN5Y29ycA" class="cyc_term">PrecipitationProcess</a> (q.v.). PrecipitationParticle cloud of water CloudOfH2O A cloud of particles of liquid or solid water in the atmosphere covering a <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViACZwpEbGdrcN5Y29ycA" class="cyc_term">GeographicalRegion</a>. A <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rAmoSCGJbQdiSXZJvYiNhkQ" class="cyc_term">CycVocabularyTopic</a> and a <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rtGXkHpNaEdqAAAACs0uFOQ" class="cyc_term">KBDependentCollection</a>. weather objects weather topic WeatherObjects-Weather-Topic weather-topic Weather-Topic An instance 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/Mx4rgQs24l2xEdif1wACs2IMlQ" class="cyc_term">Weather_Topic</a> is a <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViA9JwpEbGdrcN5Y29ycA" class="cyc_term">Thing</a> which (in some significant sense) has to do with the topic of weather. 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 A <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rAmoSCGJbQdiSXZJvYiNhkQ" class="cyc_term">CycVocabularyTopic</a> and a <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rtGXkHpNaEdqAAAACs0uFOQ" class="cyc_term">KBDependentCollection</a>. weather objects weather topic WeatherObjects-Weather-Topic A <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rAmoSCGJbQdiSXZJvYiNhkQ" class="cyc_term">CycVocabularyTopic</a> and a <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rtGXkHpNaEdqAAAACs0uFOQ" class="cyc_term">KBDependentCollection</a>. weather objects weather topic WeatherObjects-Weather-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