]> 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. butane Butane C4H10. An alkane with 4 carbon atoms. n-butane methylethyl methane C4H10

Butane

http://en.wikipedia.org/wiki/Butane butane Butane C4H10. An alkane with 4 carbon atoms. chemical substance A collection of collections and a specialization of <a href="http://sw.opencyc.org/concept/Mx4rvViGSpwpEbGdrcN5Y29ycA" class="cyc_term">TangibleStuffCompositionType</a>. Each instance of <a href="http://sw.opencyc.org/concept/Mx4rvVjNlZwpEbGdrcN5Y29ycA" class="cyc_term">ChemicalSubstanceType</a> is a specialization of <a href="http://sw.opencyc.org/concept/Mx4rvVj27ZwpEbGdrcN5Y29ycA" class="cyc_term">PartiallyTangible</a> whose instances are defined only by their chemical composition -- not by their physical state or any other property. Instances of <a href="http://sw.opencyc.org/concept/Mx4rvVjNlZwpEbGdrcN5Y29ycA" class="cyc_term">ChemicalSubstanceType</a> can be of two varieties: (1) Collections whose instances are completely uniform with each other in terms of chemical composition; this includes (a) the chemical elements -- such as <a href="http://sw.opencyc.org/concept/Mx4rvVjIQpwpEbGdrcN5Y29ycA" class="cyc_term">Carbon</a>, <a href="http://sw.opencyc.org/concept/Mx4rvVjIyJwpEbGdrcN5Y29ycA" class="cyc_term">Oxygen</a>, and <a href="http://sw.opencyc.org/concept/Mx4rvVi6UpwpEbGdrcN5Y29ycA" class="cyc_term">Hydrogen</a> -- which are instances of <a href="http://sw.opencyc.org/concept/Mx4rvVkIMJwpEbGdrcN5Y29ycA" class="cyc_term">ElementStuffTypeByNumberOfProtons</a> (thus, the latter is a specialization of <a href="http://sw.opencyc.org/concept/Mx4rvVjNlZwpEbGdrcN5Y29ycA" class="cyc_term">ChemicalSubstanceType</a>), and (b) chemical compounds constituted of more than one substance chemically bonded, e.g., <a href="http://sw.opencyc.org/concept/Mx4rvVjAHZwpEbGdrcN5Y29ycA" class="cyc_term">Water</a>, <a href="http://sw.opencyc.org/concept/Mx4rvVkLW5wpEbGdrcN5Y29ycA" class="cyc_term">Caffeine</a>, and <a href="http://sw.opencyc.org/concept/Mx4rvVj8YZwpEbGdrcN5Y29ycA" class="cyc_term">IronOxide</a>, which are instances of <a href="http://sw.opencyc.org/concept/Mx4rvUCoPtoTQdaZVdw2OtjsAg" class="cyc_term">ChemicalCompoundTypeByChemicalSpecies</a> (2) Substances which have a general chemical specification, that is, whose instances do not have exactly the same chemical composition but fall within certain specifications, e.g., <a href="http://sw.opencyc.org/concept/Mx4rvWXHLJwpEbGdrcN5Y29ycA" class="cyc_term">DNAStuff</a>. Note that collections that are not instances of <a href="http://sw.opencyc.org/concept/Mx4rvVjNlZwpEbGdrcN5Y29ycA" class="cyc_term">ChemicalSubstanceType</a> include collections of substances which have some component which is of overriding significance in some context, so that in everyday language such substances are frequently referred to by the name of their important component (e.g., "penicillin" applied to a tablet containing penicillin), but which have significant admixtures of other substances. Thus, <a href="http://sw.opencyc.org/concept/Mx4rvVivu5wpEbGdrcN5Y29ycA" class="cyc_term">Penicillin</a> is an instance of <a href="http://sw.opencyc.org/concept/Mx4rvVjNlZwpEbGdrcN5Y29ycA" class="cyc_term">ChemicalSubstanceType</a>, but the collection of tablets containing penicillin and including other ingredients is not. Also, specializations of <a href="http://sw.opencyc.org/concept/Mx4rvVjon5wpEbGdrcN5Y29ycA" class="cyc_term">Mixture</a>, such as <a href="http://sw.opencyc.org/concept/Mx4rvViCw5wpEbGdrcN5Y29ycA" class="cyc_term">Lemonade</a>, are not instances of <a href="http://sw.opencyc.org/concept/Mx4rvVjNlZwpEbGdrcN5Y29ycA" class="cyc_term">ChemicalSubstanceType</a>, because mixtures are determined by their physical state rather than solely by their chemical composition. ChemicalSubstanceType butane Butane C4H10. An alkane with 4 carbon atoms. 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 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 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 A specialization of <a href="http://sw.opencyc.org/concept/Mx4rvVj27ZwpEbGdrcN5Y29ycA" class="cyc_term">PartiallyTangible</a> and an instance of <a href="http://sw.opencyc.org/concept/Mx4rvViRCJwpEbGdrcN5Y29ycA" class="cyc_term">MatterTypeByPhysicalState</a>. Each instance of <a href="http://sw.opencyc.org/concept/Mx4rvVi9X5wpEbGdrcN5Y29ycA" class="cyc_term">Gaseous_StateOfMatter</a> is an object of a single chemical species in the gaseous state of matter. Objects in the gaseous state of matter are at a high enough temperature or low enough pressure for the type of matter involved that the molecules are not bonded even weakly to their neighbors, and readily break free. Gaseous objects are characterized at the macroscopic level by having diffuse boundaries (when outside of containers), no shape independent of a container, and by great expandability and compressibility. Examples of things that typically have this attribute are: the helium in a child's balloon; the oxygen in Earth's atmosphere; the water vapor in Earth's atmosphere. Gaseous-StateOfMatter gas butane Butane C4H10. An alkane with 4 carbon atoms. The most basic class of Hydrocarbons. Each subcollection of <a href="http://sw.opencyc.org/concept/Mx4rydvDMuzqQdaLvdv5ptfzVQ" class="cyc_term">Alkane</a> is a type of stuff whose carbon atoms are bonded to four other atoms. Subcollections include <a href="http://sw.opencyc.org/concept/Mx4rwScGqJwpEbGdrcN5Y29ycA" class="cyc_term">Methane</a> and <a href="http://sw.opencyc.org/concept/Mx4rwRdbQJwpEbGdrcN5Y29ycA" class="cyc_term">Propane</a>. Alkane alkane