]> 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. vertebrates by taxonomic class biology 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>. VertebratesByTaxonomicClass-Biology-Topic Bird bird An instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViXTJwpEbGdrcN5Y29ycA" class="cyc_term">BiologicalClass</a>, and a specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVil5pwpEbGdrcN5Y29ycA" class="cyc_term">Vertebrate</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVi8SJwpEbGdrcN5Y29ycA" class="cyc_term">Bird</a> is an air-breathing, warm-blooded, winged animal covered with feathers. Members of most, but not all, species of bird can fly. reptile An instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViXTJwpEbGdrcN5Y29ycA" class="cyc_term">BiologicalClass</a>, and a specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVil5pwpEbGdrcN5Y29ycA" class="cyc_term">Vertebrate</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjyMJwpEbGdrcN5Y29ycA" class="cyc_term">Reptile</a> is an air-breathing, cold-blooded vertebrate with a body covered by scales or bony plates. Notable specializations of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjyMJwpEbGdrcN5Y29ycA" class="cyc_term">Reptile</a> include <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViT7pwpEbGdrcN5Y29ycA" class="cyc_term">Snake</a>, <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjwr5wpEbGdrcN5Y29ycA" class="cyc_term">Lizard</a>, and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVj4wJwpEbGdrcN5Y29ycA" class="cyc_term">Turtle</a>. Most species of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjyMJwpEbGdrcN5Y29ycA" class="cyc_term">Reptile</a> are oviparous (see <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwA1siJwpEbGdrcN5Y29ycA" class="cyc_term">OviparousAnimal</a>), but some are viviparous (see <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvwWND5wpEbGdrcN5Y29ycA" class="cyc_term">ViviparousAnimal</a>). Reptile amphibian A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvmJ4oZwpEbGdrcN5Y29ycA" class="cyc_term">Poikilotherm</a> and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVil5pwpEbGdrcN5Y29ycA" class="cyc_term">Vertebrate</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjgJJwpEbGdrcN5Y29ycA" class="cyc_term">Amphibian</a> isa a cold-blodded and smooth-skinned vertebrate that hatches from an egg to form an aquatic larva (see <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwQCBvZwpEbGdrcN5Y29ycA" class="cyc_term">Larva</a>), which then metamorphoses into an air-breathing adult (see <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvvfJwZwpEbGdrcN5Y29ycA" class="cyc_term">AirBreathingVertebrate</a>). Important subcollections include <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjcS5wpEbGdrcN5Y29ycA" class="cyc_term">Frog</a> and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjNupwpEbGdrcN5Y29ycA" class="cyc_term">Salamander</a>. Amphibian mammal An instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViXTJwpEbGdrcN5Y29ycA" class="cyc_term">BiologicalClass</a>, and a sub-taxon of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVil5pwpEbGdrcN5Y29ycA" class="cyc_term">Vertebrate</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVimKJwpEbGdrcN5Y29ycA" class="cyc_term">Mammal</a> is an air-breathing, warm-blooded animal which, if female, nurses its young with milk secreted by mammary glands. The skin of instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVimKJwpEbGdrcN5Y29ycA" class="cyc_term">Mammal</a> is typically covered with hair (or sometimes hair modified into scales or plates, as in pangolins), but some types are almost hairless. All mammals other than the Monotremes of Australia bear live young rather than laying eggs, and have teats, which on females are used for nursing the young. Monotremes do not have teats, but both male and female produce milk from mammary glands. Mammal fish An instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViXTJwpEbGdrcN5Y29ycA" class="cyc_term">BiologicalClass</a>, and a specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVil5pwpEbGdrcN5Y29ycA" class="cyc_term">Vertebrate</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjfU5wpEbGdrcN5Y29ycA" class="cyc_term">Fish</a> is a cold-blooded animal (see the collection <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvmJ4oZwpEbGdrcN5Y29ycA" class="cyc_term">Poikilotherm</a>) with gills and fins. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjfU5wpEbGdrcN5Y29ycA" class="cyc_term">Fish</a> spends all or almost all of its life under water. Note that the collection <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjfU5wpEbGdrcN5Y29ycA" class="cyc_term">Fish</a> excludes fish-shaped examples of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVimKJwpEbGdrcN5Y29ycA" class="cyc_term">Mammal</a>, such as porpoises and whales. Specializations of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjfU5wpEbGdrcN5Y29ycA" class="cyc_term">Fish</a> include the collections <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVi87pwpEbGdrcN5Y29ycA" class="cyc_term">Salmon</a>, <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVi8a5wpEbGdrcN5Y29ycA" class="cyc_term">Catfish</a>, and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwP1c8JwpEbGdrcN5Y29ycA" class="cyc_term">Tuna</a>. Fish 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>. vertebrates by taxonomic class biology topic VertebratesByTaxonomicClass-Biology-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>. vertebrates by taxonomic class biology topic VertebratesByTaxonomicClass-Biology-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>. vertebrates by taxonomic class biology topic VertebratesByTaxonomicClass-Biology-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 biology-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/Mx4rgQs2412xEdif1wACs2IMlQ" class="cyc_term">Biology_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 biology. Biology-Topic