]> 2009/04/07 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 "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. 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. 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. ShastaCrayfish Shasta Crayfish Pacifastacus fortis placid crayfish Shasta crayfish http://en.wikipedia.org/wiki/Shasta_crayfish Pretty String (<a href="http://sw.opencyc.org/concept/Mx4rwLSVCpwpEbGdrcN5Y29ycA" class="cyc_term">prettyString</a> TERM STRING) means that STRING is the English word or expression (sequence of words) commonly used to refer to TERM. The predicate <a href="http://sw.opencyc.org/concept/Mx4rwLSVCpwpEbGdrcN5Y29ycA" class="cyc_term">prettyString</a> is used by the code which generates CycL to English paraphrases, but its applicability is not restricted to this use. prettyString Wikipedia Article URL (<a href="http://sw.opencyc.org/concept/Mx4rNv0nbm4TTjOp7yhmnzOyqg" class="cyc_term">wikipediaArticleURL</a> THING URL) means that in <a href="http://sw.opencyc.org/concept/Mx4rtqXA6OC8QdiWC72DuLJdUw" class="cyc_term">Wikipedia_WebSite</a> THING is described by an article located at URL wikipediaArticleURL Typically aquatic arthropods that have an exoskeleton and appendages on each segment and two pairs of antenna. crustacean Crustacean species BiologicalSpecies An instance of <a href="http://sw.opencyc.org/concept/Mx4rvViNxpwpEbGdrcN5Y29ycA" class="cyc_term">BiologicalTaxonType</a>. Each instance of <a href="http://sw.opencyc.org/concept/Mx4rvVjK65wpEbGdrcN5Y29ycA" class="cyc_term">BiologicalSpecies</a> is the most general taxon from which two breeding organisms of appropriate sexes can conceivably produce fertile offspring, or, in the case of asexual reproduction, is conventionally defined. Members of different species of animals cannot produce fertile offspring by interbreeding. If there are only two breeds of a given species and one breed becomes extinct, the second breed by virtue of that fact becomes an instance of <a href="http://sw.opencyc.org/concept/Mx4rvVjK65wpEbGdrcN5Y29ycA" class="cyc_term">BiologicalSpecies</a> -- since the only organisms instances can breed with to produce fertile offspring are, at that point, members of that collection. An instance of <a href="http://sw.opencyc.org/concept/Mx4rvVjK65wpEbGdrcN5Y29ycA" class="cyc_term">BiologicalSpecies</a> has members who all have significant traits in common, and members of each biological species have other members as parents. Exceptions occur when a species is conventionally defined to start since parenthood could conceivably be traced back billions of years, yet new species came into existence. In biological taxonomy, related species are grouped into a particular instance of <a href="http://sw.opencyc.org/concept/Mx4rvVian5wpEbGdrcN5Y29ycA" class="cyc_term">BiologicalGenus</a>. Some genera have only a single species, but they remain different taxons. ShastaCrayfish Shasta Crayfish ShastaCrayfish Shasta Crayfish endangered species Endangered-OrganismTypeByExistentialThreatLevel The collection of <a href="http://sw.opencyc.org/concept/Mx4rvVjK65wpEbGdrcN5Y29ycA" class="cyc_term">BiologicalSpecies</a> and other <a href="http://sw.opencyc.org/concept/Mx4rvVjf5JwpEbGdrcN5Y29ycA" class="cyc_term">OrganismClassificationType</a>s that are endangered (at risk of extinction). wikipediaArticleName (<a href="http://sw.opencyc.org/concept/Mx4rTv-jk9SPTXa991kk5mAvHg" class="cyc_term">wikipediaArticleName</a> THING NAME) means that in <a href="http://sw.opencyc.org/concept/Mx4rtqXA6OC8QdiWC72DuLJdUw" class="cyc_term">Wikipedia_WebSite</a> THING is described by an article with the title NAME Wikipedia Article Name