]> 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. The collection of all conservation easements. An <a href="http://sw.opencyc.org/concept/Mx4ru-8ymLHtEdmAAAACs6hO_g" class="cyc_term">ArtifactualFeatureType</a>. ConservationEasement conservation easement conservation easements

Conservation easement

http://en.wikipedia.org/wiki/Conservation_easement 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 geographical region A specialization of <a href="http://sw.opencyc.org/concept/Mx4rwLjlAJwpEbGdrcN5Y29ycA" class="cyc_term">GeographicalThing</a> and <a href="http://sw.opencyc.org/concept/Mx4rvVkDZZwpEbGdrcN5Y29ycA" class="cyc_term">SurfaceRegion_Tangible</a>. Each instance of <a href="http://sw.opencyc.org/concept/Mx4rvViACZwpEbGdrcN5Y29ycA" class="cyc_term">GeographicalRegion</a> is a tangible spatial region that includes some piece of the surface of a planet (usually <a href="http://sw.opencyc.org/concept/Mx4rvVkL_pwpEbGdrcN5Y29ycA" class="cyc_term">PlanetEarth</a>), and may be represented on a map of the planet. This includes purely topographical regions like mountains and underwater spaces, places defined by demographics (e.g. language areas) and territory otherwise demarcated (e.g. <a href="http://sw.opencyc.org/concept/Mx4rwPvi0JwpEbGdrcN5Y29ycA" class="cyc_term">TimeZone</a>s). In "dualist" geopolitical contexts (see <a href="http://sw.opencyc.org/concept/Mx4rvnCA15wpEbGdrcN5Y29ycA" class="cyc_term">DualistGeopoliticalMt</a>, instances of <a href="http://sw.opencyc.org/concept/Mx4rvVjl2pwpEbGdrcN5Y29ycA" class="cyc_term">GeopoliticalEntity</a> are also considered to be instances of <a href="http://sw.opencyc.org/concept/Mx4rvViACZwpEbGdrcN5Y29ycA" class="cyc_term">GeographicalRegion</a>. In all cases the region in question must contain some tangible component with which it is possible to make physical contact. The instances of <a href="http://sw.opencyc.org/concept/Mx4rvViACZwpEbGdrcN5Y29ycA" class="cyc_term">GeographicalRegion</a> contrast in this respect with the instances of <a href="http://sw.opencyc.org/concept/Mx4rvc-YsJwpEbGdrcN5Y29ycA" class="cyc_term">GeographicalThing_Intangible</a>, which are wholly intangible. Examples of <a href="http://sw.opencyc.org/concept/Mx4rvViACZwpEbGdrcN5Y29ycA" class="cyc_term">GeographicalRegion</a> include <a href="http://sw.opencyc.org/concept/Mx4rvVjOO5wpEbGdrcN5Y29ycA" class="cyc_term">RockyMountainStates_USRegion</a>, the <a href="http://sw.opencyc.org/concept/Mx4rv9tl95wpEbGdrcN5Y29ycA" class="cyc_term">ContinentOfAustralia</a>, <a href="http://sw.opencyc.org/concept/Mx4rvViO4pwpEbGdrcN5Y29ycA" class="cyc_term">SinaiPeninsula</a>, and -- in "dualist" geopolitical contexts -- <a href="http://sw.opencyc.org/concept/Mx4rvViC4ZwpEbGdrcN5Y29ycA" class="cyc_term">YaleUniversity</a> and <a href="http://sw.opencyc.org/concept/Mx4rvViBlpwpEbGdrcN5Y29ycA" class="cyc_term">CityOfPittsburghPA</a>. Some important types of regions are represented by the sub-collections <a href="http://sw.opencyc.org/concept/Mx4rvVj3CJwpEbGdrcN5Y29ycA" class="cyc_term">LanguageArea</a>, <a href="http://sw.opencyc.org/concept/Mx4rwPvi0JwpEbGdrcN5Y29ycA" class="cyc_term">TimeZone</a>, <a href="http://sw.opencyc.org/concept/Mx4rvWdbEZwpEbGdrcN5Y29ycA" class="cyc_term">PostalCodeRegion</a>, <a href="http://sw.opencyc.org/concept/Mx4rvVjKJ5wpEbGdrcN5Y29ycA" class="cyc_term">EcologicalRegion</a>, <a href="http://sw.opencyc.org/concept/Mx4rwP2CrJwpEbGdrcN5Y29ycA" class="cyc_term">ConstructionSite</a>, and -- in "dualist" geopolitical contexts -- <a href="http://sw.opencyc.org/concept/Mx4rvVjl2pwpEbGdrcN5Y29ycA" class="cyc_term">GeopoliticalEntity</a>. No instances of <a href="http://sw.opencyc.org/concept/Mx4rvViACZwpEbGdrcN5Y29ycA" class="cyc_term">GeographicalRegion</a> are wholly indoor locations. GeographicalRegion artifactual feature type <a href="http://sw.opencyc.org/concept/Mx4ru-8ymLHtEdmAAAACs6hO_g" class="cyc_term">ArtifactualFeatureType</a> is the collection of <a href="http://sw.opencyc.org/concept/Mx4r6-wc8BKxEdeIXwCgydofLQ" class="cyc_term">CartographicFeatureType</a>s which are <a href="http://sw.opencyc.org/concept/Mx4rvVkH_ZwpEbGdrcN5Y29ycA" class="cyc_term">Artifact</a>s, as opposed to naturally occuring. Positive examples include <a href="http://sw.opencyc.org/concept/Mx4rvVjzt5wpEbGdrcN5Y29ycA" class="cyc_term">WaterReservoir</a>, <a href="http://sw.opencyc.org/concept/Mx4rvVjzcZwpEbGdrcN5Y29ycA" class="cyc_term">Canal</a>, and <a href="http://sw.opencyc.org/concept/Mx4rT2uByCTVQdeVZZaE0030Zg" class="cyc_term">Airfield</a>. Negative examples include <a href="http://sw.opencyc.org/concept/Mx4rvVjODZwpEbGdrcN5Y29ycA" class="cyc_term">Mountain</a>, <a href="http://sw.opencyc.org/concept/Mx4rvVjktpwpEbGdrcN5Y29ycA" class="cyc_term">Ocean</a>, and <a href="http://sw.opencyc.org/concept/Mx4rvgD8VZwpEbGdrcN5Y29ycA" class="cyc_term">Mesa</a>. Also see <a href="http://sw.opencyc.org/concept/Mx4rummjkLHtEdmAAAACs6hO_g" class="cyc_term">NaturalFeatureType</a>, the corresponding collection for naturally occuring feature types. ArtifactualFeatureType The collection of all conservation easements. An <a href="http://sw.opencyc.org/concept/Mx4ru-8ymLHtEdmAAAACs6hO_g" class="cyc_term">ArtifactualFeatureType</a>. conservation easement ConservationEasement This is a collection of <a href="http://sw.opencyc.org/concept/Mx4rO7TvVi85QdiYBLTS_pYTWA" class="cyc_term">StubTerm</a>s whose stubbiness is particularly egregious. Instancehood in this collection means that the reified term is very insufficiently ontologized and needs further attention from an ontologist. It might mean that the necessary vocabulary for properly defining the term does not even exist. poorly ontologized Cyc term PoorlyOntologized 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 NonNaturalThing The collection of non-natural individuals. This collection is hard to precisely define but, roughly, something is an instance of this collection just in case it is one of the following: 1) <a href="http://sw.opencyc.org/concept/Mx4rvVjaApwpEbGdrcN5Y29ycA" class="cyc_term">Individual</a> acts that are intentionally performed by <a href="http://sw.opencyc.org/concept/Mx4rvVinb5wpEbGdrcN5Y29ycA" class="cyc_term">IntelligentAgent</a>s, or 2) <a href="http://sw.opencyc.org/concept/Mx4rvVjaApwpEbGdrcN5Y29ycA" class="cyc_term">Individual</a>s that in some significant sense "could only have been the result" of the intentional activities of <a href="http://sw.opencyc.org/concept/Mx4rvVinb5wpEbGdrcN5Y29ycA" class="cyc_term">IntelligentAgent</a>s (or groups thereof). Positive examples in the first category include <a href="http://sw.opencyc.org/concept/Mx4rwP1F75wpEbGdrcN5Y29ycA" class="cyc_term">CesareanBirth</a>s, negative examples include eating. Positive examples in the second category include instances of industrial pollution and tire tracks. Negative examples include human vomit and human (bare) footprints. unnatural thing quotedIsa A binary <a href="http://sw.opencyc.org/concept/Mx4rDeDIGEW0EdaAAACgydogAg" class="cyc_term">MetaLanguagePredicate</a> (q.v.) that relates CycL expressions to the <a href="http://sw.opencyc.org/concept/Mx4raOoTci9qEdma4AACs1uxFw" class="cyc_term">SubLExpressionType</a>s (q.v.) of which they are instances. <a href="http://sw.opencyc.org/concept/Mx4rBVVEokNxEdaAAACgydogAg" class="cyc_term">quotedIsa</a> is thus like a restricted version of <a href="http://sw.opencyc.org/concept/Mx4rvViBBJwpEbGdrcN5Y29ycA" class="cyc_term">isa</a> (q.v.), but with one important difference: the first argument-place of <a href="http://sw.opencyc.org/concept/Mx4rBVVEokNxEdaAAACgydogAg" class="cyc_term">quotedIsa</a> is "implicitly quoted" (see <a href="http://sw.opencyc.org/concept/Mx4rwHb_bZwpEbGdrcN5Y29ycA" class="cyc_term">quotedArgument</a>). So a ground atomic sentence of the form <code>(<a href="http://sw.opencyc.org/concept/Mx4rBVVEokNxEdaAAACgydogAg" class="cyc_term">quotedIsa</a> THING EXPR-TYPE)</code> does not mean that <code>THING</code> itself is an instance of <code>EXPR-TYPE</code>. Rather, such a sentence is partly self-referential, and means that the particular CycL expression appearing in the sentence's own first argument-position is an instance of <code>EXPR-TYPE</code>. Thus, <a href="http://sw.opencyc.org/concept/Mx4rBVVEokNxEdaAAACgydogAg" class="cyc_term">quotedIsa</a> provides a convenient shorthand for stating certain things that would otherwise require explicit quotation (or some other device for naming expressions). This is better illustrated with a specific example. Suppose we wish to state that the CycL constant <code><a href="http://sw.opencyc.org/concept/Mx4rvViH35wpEbGdrcN5Y29ycA" class="cyc_term">IndianOcean</a></code> is an instance of the CycL expression type #$PublicConstant. We cannot express this with the straightforward <a href="http://sw.opencyc.org/concept/Mx4rvViBBJwpEbGdrcN5Y29ycA" class="cyc_term">isa</a> sentence <code>(<a href="http://sw.opencyc.org/concept/Mx4rvViBBJwpEbGdrcN5Y29ycA" class="cyc_term">isa</a> <a href="http://sw.opencyc.org/concept/Mx4rvViH35wpEbGdrcN5Y29ycA" class="cyc_term">IndianOcean</a> #$PublicConstant)</code>, as that states the falsehood that the IndianOcean itself -- which is not a constant but a body of water -- is a public constant. But we can express precisely what we want like this: <pre> (<a href="http://sw.opencyc.org/concept/Mx4rBVVEokNxEdaAAACgydogAg" class="cyc_term">quotedIsa</a> <a href="http://sw.opencyc.org/concept/Mx4rvViH35wpEbGdrcN5Y29ycA" class="cyc_term">IndianOcean</a> #$PublicConstant) . </pre> Now <a href="http://sw.opencyc.org/concept/Mx4rBVVEokNxEdaAAACgydogAg" class="cyc_term">quotedIsa</a> is a <a href="http://sw.opencyc.org/concept/Mx4rv4oJWZwpEbGdrcN5Y29ycA" class="cyc_term">MacroRelation</a> (q.v.), and by its <a href="http://sw.opencyc.org/concept/Mx4rvVjg7JwpEbGdrcN5Y29ycA" class="cyc_term">expansion</a> any given <a href="http://sw.opencyc.org/concept/Mx4rBVVEokNxEdaAAACgydogAg" class="cyc_term">quotedIsa</a> sentence is equivalent to some <a href="http://sw.opencyc.org/concept/Mx4rvViBBJwpEbGdrcN5Y29ycA" class="cyc_term">isa</a> sentence with an explicitly quoted first argument. The sentence displayed above turns out to be equivalent to: <pre> (<a href="http://sw.opencyc.org/concept/Mx4rvViBBJwpEbGdrcN5Y29ycA" class="cyc_term">isa</a> (<a href="http://sw.opencyc.org/concept/Mx4rgGBbEkNuEdaAAACgydogAg" class="cyc_term">Quote</a> <a href="http://sw.opencyc.org/concept/Mx4rvViH35wpEbGdrcN5Y29ycA" class="cyc_term">IndianOcean</a>) #$PublicConstant). </pre> But the <a href="http://sw.opencyc.org/concept/Mx4rBVVEokNxEdaAAACgydogAg" class="cyc_term">quotedIsa</a> version has two related practical advantages over the <a href="http://sw.opencyc.org/concept/Mx4rvViBBJwpEbGdrcN5Y29ycA" class="cyc_term">isa</a> version. First, the former is syntactically simpler than the latter. Second, the simpler syntax of the former makes it easier to browse in the Knowedge Base: while the <a href="http://sw.opencyc.org/concept/Mx4rBVVEokNxEdaAAACgydogAg" class="cyc_term">quotedIsa</a> version is conveniently indexed under the KB Browser page for the constant <code><a href="http://sw.opencyc.org/concept/Mx4rvViH35wpEbGdrcN5Y29ycA" class="cyc_term">IndianOcean</a></code>, the <a href="http://sw.opencyc.org/concept/Mx4rvViBBJwpEbGdrcN5Y29ycA" class="cyc_term">isa</a> version would apparently be indexed under a separate, brand new page for the term <code>(<a href="http://sw.opencyc.org/concept/Mx4rgGBbEkNuEdaAAACgydogAg" class="cyc_term">Quote</a> <a href="http://sw.opencyc.org/concept/Mx4rvViH35wpEbGdrcN5Y29ycA" class="cyc_term">IndianOcean</a>)</code>. Generalizing the point, <a href="http://sw.opencyc.org/concept/Mx4rBVVEokNxEdaAAACgydogAg" class="cyc_term">quotedIsa</a> lets us avoid having potentially to double the number of pages currently in the browser. For the semantically more complicated (but rarely encountered) case in which <a href="http://sw.opencyc.org/concept/Mx4rBVVEokNxEdaAAACgydogAg" class="cyc_term">quotedIsa</a>'s first argument-place is filled with an open expression, see the accompanying #$cyclistNotes. Quoted Isa StubTerm stub Cyc term Instancehood in this collection indicates that the reified term is a stub, i.e. it is not fully fleshed out in terms of definitional info and/or documentation. 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 The collection of all conservation easements. An <a href="http://sw.opencyc.org/concept/Mx4ru-8ymLHtEdmAAAACs6hO_g" class="cyc_term">ArtifactualFeatureType</a>. conservation easement ConservationEasement The collection of all conservation easements. An <a href="http://sw.opencyc.org/concept/Mx4ru-8ymLHtEdmAAAACs6hO_g" class="cyc_term">ArtifactualFeatureType</a>. conservation easement ConservationEasement