]> 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. A specialization of <a href="http://sw.opencyc.org/concept/Mx4rvVjpUZwpEbGdrcN5Y29ycA" class="cyc_term">SpatialThing</a>. Each instance of <a href="http://sw.opencyc.org/concept/Mx4ro5wCxPfVEdmAAAACs0uFOQ" class="cyc_term">AxisymmetricObject</a> is a (tangible or intangible) spatial thing that is symmetric with respect to an axis. Such an axis, which is a <a href="http://sw.opencyc.org/concept/Mx4rvVjC4JwpEbGdrcN5Y29ycA" class="cyc_term">Line_Straight</a>, is an axis of symmetry (see <a href="http://sw.opencyc.org/concept/Mx4r4BM6CvVqEdmAAAACs0uFOQ" class="cyc_term">symmetricAxes</a>) of the spatial thing. An axially symmetric object might be a <a href="http://sw.opencyc.org/concept/Mx4rvVi5S5wpEbGdrcN5Y29ycA" class="cyc_term">BilaterallySymmetricObject</a> or a <a href="http://sw.opencyc.org/concept/Mx4rvVkG_5wpEbGdrcN5Y29ycA" class="cyc_term">RadiallySymmetricObject</a> (qq.v.). AxisymmetricObject axisymmetric object bilaterally symmetrical object BilaterallySymmetricObject A specialization of <a href="http://sw.opencyc.org/concept/Mx4ro5wCxPfVEdmAAAACs0uFOQ" class="cyc_term">AxisymmetricObject</a> (q.v.). Each instance of <a href="http://sw.opencyc.org/concept/Mx4rvVi5S5wpEbGdrcN5Y29ycA" class="cyc_term">BilaterallySymmetricObject</a> is a (tangible or intangible) spatial object that is symmetric with respect to some bisecting straight line (if the object is planar) or plane (if it's non-planar). In this context, symmetric means that the line or plane divides the object into two equal halves with the same shape (or mirror-image shapes). For example, a <a href="http://sw.opencyc.org/concept/Mx4rmSmWUM7yEdmAAAACs0uFOQ" class="cyc_term">Circle</a>, an isosceles <a href="http://sw.opencyc.org/concept/Mx4rvVjrapwpEbGdrcN5Y29ycA" class="cyc_term">Triangle</a>, a <a href="http://sw.opencyc.org/concept/Mx4rwQwzSJwpEbGdrcN5Y29ycA" class="cyc_term">Cone</a>, and a human body are all bilaterally symmetric objects. If a <a href="http://sw.opencyc.org/concept/Mx4rvVi5S5wpEbGdrcN5Y29ycA" class="cyc_term">BilaterallySymmetricObject</a> <code>OBJ</code> is a one- or two-dimensional planar region, then any bisecting line with respect to which <code>OBJ</code> is symmetric is an axis of symmetry (see <a href="http://sw.opencyc.org/concept/Mx4r4BM6CvVqEdmAAAACs0uFOQ" class="cyc_term">symmetricAxes</a>) of <code>OBJ</code>. If <code>OBJ</code> is a two- or three-dimensional non-planar object that is symmetric with respect to a bisecting plane <code>PLANE</code>, then any straight line with respect to which the space-region intersection of <code>OBJ</code> and <code>PLANE</code> is symmetric is itself an axis of symmetry of <code>OBJ</code>. Thus, a circle has an infinite number of axes of symmetry (viz. any straight line that intersects the circle and passes through its center); an isosceles triangle has exactly one axis of symmetry; a cone has at least one axis of symmetry; and a human body has no axis of symmetry (though it does have three <a href="http://sw.opencyc.org/concept/Mx4r-y7_GvfZEdmAAAACs0uFOQ" class="cyc_term">objectAxes</a> (q.v.)). See also <a href="http://sw.opencyc.org/concept/Mx4rvVkG_5wpEbGdrcN5Y29ycA" class="cyc_term">RadiallySymmetricObject</a>. radial thing A specialization of <a href="http://sw.opencyc.org/concept/Mx4rvVjpUZwpEbGdrcN5Y29ycA" class="cyc_term">SpatialThing</a>. Each instance of <a href="http://sw.opencyc.org/concept/Mx4rvVkG_5wpEbGdrcN5Y29ycA" class="cyc_term">RadiallySymmetricObject</a> is a spatial thing whose spatial parts are regularly arranged about a central axis. Instances of <a href="http://sw.opencyc.org/concept/Mx4rvVkG_5wpEbGdrcN5Y29ycA" class="cyc_term">RadiallySymmetricObject</a> include wheels and adult starfish. RadiallySymmetricObject the union of { axisymmetric object, bilateral object } (CollectionUnionFn (TheSet AxisymmetricObject BilateralObject)) type of temporally stuff-like thing TemporalStuffType A specialization of <a href="http://sw.opencyc.org/concept/Mx4rvVir35wpEbGdrcN5Y29ycA" class="cyc_term">StuffType</a> (q.v.) whose instances are all and only those collections that are temporally stuff-like. A collection <code>COL</code> is temporally stuff-like just in case every purely temporal part (see <a href="http://sw.opencyc.org/concept/Mx4rvWn4OZwpEbGdrcN5Y29ycA" class="cyc_term">timeSlices</a>) of an instance of <code>COL</code> is itself an instance of <code>COL</code>, unless it is a temporal part of a temporal granule of <code>COL</code> (see <a href="http://sw.opencyc.org/concept/Mx4rvVjaJJwpEbGdrcN5Y29ycA" class="cyc_term">granuleOfTemporalStuff</a>). More precisely, for a collection <code>COL</code> to be an instance of <a href="http://sw.opencyc.org/concept/Mx4rvVitN5wpEbGdrcN5Y29ycA" class="cyc_term">TemporalStuffType</a> it is both a necessary and sufficient condition that for any <code>OBJ1</code> and <code>OBJ2</code> (with <code>OBJ2</code> at or above <code>COL</code>'s temporal granularity level), if <code>(<a href="http://sw.opencyc.org/concept/Mx4rvViBBJwpEbGdrcN5Y29ycA" class="cyc_term">isa</a> OBJ1 COL)</code> and <code>(<a href="http://sw.opencyc.org/concept/Mx4rvWn4OZwpEbGdrcN5Y29ycA" class="cyc_term">timeSlices</a> OBJ1 OBJ2)</code>, then <code>(<a href="http://sw.opencyc.org/concept/Mx4rvViBBJwpEbGdrcN5Y29ycA" class="cyc_term">isa</a> OBJ2 COL)</code>. Consider <a href="http://sw.opencyc.org/concept/Mx4rvVi0gpwpEbGdrcN5Y29ycA" class="cyc_term">WalkingOnTwoLegs</a>. Take an arbitrary instance <code>WALK</code> of this collection (say Miss America 2000's victory walk down the runway and back); and then take an arbitrary time-slice <code>SUBWALK</code> of <code>WALK</code> that subsumes at least one instance of (the <a href="http://sw.opencyc.org/concept/Mx4rvVjaJJwpEbGdrcN5Y29ycA" class="cyc_term">granuleOfTemporalStuff</a> for <a href="http://sw.opencyc.org/concept/Mx4rvVi0gpwpEbGdrcN5Y29ycA" class="cyc_term">WalkingOnTwoLegs</a>) <a href="http://sw.opencyc.org/concept/Mx4rvViYBpwpEbGdrcN5Y29ycA" class="cyc_term">TakingAStep</a> (say her trip back from the end of the runway). <code>SUBWALK</code> is itself an instance of <a href="http://sw.opencyc.org/concept/Mx4rvVi0gpwpEbGdrcN5Y29ycA" class="cyc_term">WalkingOnTwoLegs</a>. So <a href="http://sw.opencyc.org/concept/Mx4rvVi0gpwpEbGdrcN5Y29ycA" class="cyc_term">WalkingOnTwoLegs</a> is an instance of <a href="http://sw.opencyc.org/concept/Mx4rvVitN5wpEbGdrcN5Y29ycA" class="cyc_term">TemporalStuffType</a>. See <a href="http://sw.opencyc.org/concept/Mx4rvViq35wpEbGdrcN5Y29ycA" class="cyc_term">TemporalObjectType</a> for the disjoint notion of being temporally object-like. symmetry in space spatial topic SymmetryInSpace-Spatial-Topic A specialization of <a href="http://sw.opencyc.org/concept/Mx4rvVjpUZwpEbGdrcN5Y29ycA" class="cyc_term">SpatialThing</a>. Each instance of <a href="http://sw.opencyc.org/concept/Mx4ro5wCxPfVEdmAAAACs0uFOQ" class="cyc_term">AxisymmetricObject</a> is a (tangible or intangible) spatial thing that is symmetric with respect to an axis. Such an axis, which is a <a href="http://sw.opencyc.org/concept/Mx4rvVjC4JwpEbGdrcN5Y29ycA" class="cyc_term">Line_Straight</a>, is an axis of symmetry (see <a href="http://sw.opencyc.org/concept/Mx4r4BM6CvVqEdmAAAACs0uFOQ" class="cyc_term">symmetricAxes</a>) of the spatial thing. An axially symmetric object might be a <a href="http://sw.opencyc.org/concept/Mx4rvVi5S5wpEbGdrcN5Y29ycA" class="cyc_term">BilaterallySymmetricObject</a> or a <a href="http://sw.opencyc.org/concept/Mx4rvVkG_5wpEbGdrcN5Y29ycA" class="cyc_term">RadiallySymmetricObject</a> (qq.v.). AxisymmetricObject axisymmetric object spatial thing SpatialThing A specialization of <a href="http://sw.opencyc.org/concept/Mx4rvVjaApwpEbGdrcN5Y29ycA" class="cyc_term">Individual</a>. The collection of all things that have a spatial extent or location relative to some other <a href="http://sw.opencyc.org/concept/Mx4rvVjpUZwpEbGdrcN5Y29ycA" class="cyc_term">SpatialThing</a> or in some embedding space. Note that to say that an entity is a member of this collection is to remain agnostic about two issues. First, a <a href="http://sw.opencyc.org/concept/Mx4rvVjpUZwpEbGdrcN5Y29ycA" class="cyc_term">SpatialThing</a> may be <a href="http://sw.opencyc.org/concept/Mx4rvVj27ZwpEbGdrcN5Y29ycA" class="cyc_term">PartiallyTangible</a> (e.g. <a href="http://sw.opencyc.org/concept/Mx4rvVkBk5wpEbGdrcN5Y29ycA" class="cyc_term">Texas_State</a>) or wholly <a href="http://sw.opencyc.org/concept/Mx4rvVjjo5wpEbGdrcN5Y29ycA" class="cyc_term">Intangible</a> (e.g. <a href="http://sw.opencyc.org/concept/Mx4rvsrySJwpEbGdrcN5Y29ycA" class="cyc_term">ArcticCircle</a> or a line mentioned in a geometric theorem). Second, although we do insist on location relative to another spatial thing or in some embedding space, a <a href="http://sw.opencyc.org/concept/Mx4rvVjpUZwpEbGdrcN5Y29ycA" class="cyc_term">SpatialThing</a> might or might not be located in the actual physical universe. It is far from clear that all <a href="http://sw.opencyc.org/concept/Mx4rvVjpUZwpEbGdrcN5Y29ycA" class="cyc_term">SpatialThing</a>s are so located: an ideal platonic circle or a trajectory through the phase space of some physical system (e.g.) might not be. If the intent is to imply location in the empirically observable cosmos, the user should employ this collection's specialization, <a href="http://sw.opencyc.org/concept/Mx4rwS68M5wpEbGdrcN5Y29ycA" class="cyc_term">SpatialThing_Localized</a>. A specialization of <a href="http://sw.opencyc.org/concept/Mx4rvVjpUZwpEbGdrcN5Y29ycA" class="cyc_term">SpatialThing</a>. Each instance of <a href="http://sw.opencyc.org/concept/Mx4ro5wCxPfVEdmAAAACs0uFOQ" class="cyc_term">AxisymmetricObject</a> is a (tangible or intangible) spatial thing that is symmetric with respect to an axis. Such an axis, which is a <a href="http://sw.opencyc.org/concept/Mx4rvVjC4JwpEbGdrcN5Y29ycA" class="cyc_term">Line_Straight</a>, is an axis of symmetry (see <a href="http://sw.opencyc.org/concept/Mx4r4BM6CvVqEdmAAAACs0uFOQ" class="cyc_term">symmetricAxes</a>) of the spatial thing. An axially symmetric object might be a <a href="http://sw.opencyc.org/concept/Mx4rvVi5S5wpEbGdrcN5Y29ycA" class="cyc_term">BilaterallySymmetricObject</a> or a <a href="http://sw.opencyc.org/concept/Mx4rvVkG_5wpEbGdrcN5Y29ycA" class="cyc_term">RadiallySymmetricObject</a> (qq.v.). AxisymmetricObject axisymmetric object