]> 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. IrrigatedLand irrigated land The collection of land which is artificially watered, using fresh water from rivers and lakes or from underground. Irrigation is necessary for agriculture in many areas. http://en.wikipedia.org/wiki/Irrigation field that is an affected object of irrigation Field-Land A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rjXL9znS-EdaAAACgyZzFrg" class="cyc_term">FlatRegion</a> and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjOh5wpEbGdrcN5Y29ycA" class="cyc_term">LandTopographicalFeature</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjLUZwpEbGdrcN5Y29ycA" class="cyc_term">Field_Land</a> is a plot of ground covered by low vegetation, either naturally-occurring or cultivated (see <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwQr0p5wpEbGdrcN5Y29ycA" class="cyc_term">Field_Agricultural</a>). field <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4ru-8ymLHtEdmAAAACs6hO_g" class="cyc_term">ArtifactualFeatureType</a> is the collection of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4r6-wc8BKxEdeIXwCgydofLQ" class="cyc_term">CartographicFeatureType</a>s which are <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVkH_ZwpEbGdrcN5Y29ycA" class="cyc_term">Artifact</a>s, as opposed to naturally occuring. Positive examples include <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjzt5wpEbGdrcN5Y29ycA" class="cyc_term">WaterReservoir</a>, <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjzcZwpEbGdrcN5Y29ycA" class="cyc_term">Canal</a>, and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rT2uByCTVQdeVZZaE0030Zg" class="cyc_term">Airfield</a>. Negative examples include <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjODZwpEbGdrcN5Y29ycA" class="cyc_term">Mountain</a>, <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjktpwpEbGdrcN5Y29ycA" class="cyc_term">Ocean</a>, and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvgD8VZwpEbGdrcN5Y29ycA" class="cyc_term">Mesa</a>. Also see <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rummjkLHtEdmAAAACs6hO_g" class="cyc_term">NaturalFeatureType</a>, the corresponding collection for naturally occuring feature types. artifactual feature type ArtifactualFeatureType IrrigatedLand irrigated land The collection of land which is artificially watered, using fresh water from rivers and lakes or from underground. Irrigation is necessary for agriculture in many areas. unnatural thing 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/2008/06/10/concept/Mx4rvVjaApwpEbGdrcN5Y29ycA" class="cyc_term">Individual</a> acts that are intentionally performed by <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVinb5wpEbGdrcN5Y29ycA" class="cyc_term">IntelligentAgent</a>s, or 2) <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjaApwpEbGdrcN5Y29ycA" class="cyc_term">Individual</a>s that in some significant sense &quot;could only have been the result&quot; of the intentional activities of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVinb5wpEbGdrcN5Y29ycA" class="cyc_term">IntelligentAgent</a>s (or groups thereof). Positive examples in the first category include <a href="http://sw.opencyc.org/2008/06/10/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. NonNaturalThing IrrigatedLand irrigated land The collection of land which is artificially watered, using fresh water from rivers and lakes or from underground. Irrigation is necessary for agriculture in many areas. IrrigatedLand irrigated land The collection of land which is artificially watered, using fresh water from rivers and lakes or from underground. Irrigation is necessary for agriculture in many areas. Pretty String (<a href="http://sw.opencyc.org/2008/06/10/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/2008/06/10/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 IrrigatedLand irrigated land The collection of land which is artificially watered, using fresh water from rivers and lakes or from underground. Irrigation is necessary for agriculture in many areas. ArableLand The collection of land areas which are suitable for farming, whether or not they are actually in use for crop production at any given moment. cultivable land