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| Object | 6055 | Corresponds roughly to the class of ordinary objects. Examples include normal physical objects, geo... | ^ |
| Region | 1396 | A topographic location. Regions encompass surfaces of Objects, imaginary places, and Geograph... | ^ |
| Atmosphere | 1 | Atmosphere is a Mixture of gases surrounding any celestial object that has a gravitational fiel... | ^ |
| HydrophobicSide | . | The class of hydrophobic sides of lipid bilayers. | ^ |
| HydrophilicSide | . | The class of hydrophilic sides of lipid bilayers. | ^ |
| ParkingRegion | 3 | A ParkingRegion is a Region where TransportationDevice is kept temporarily | ^ |
| AirportStagingArea | . | An AirportStagingArea is a designated area where equipment can be staged prior to the arrival or ... | ^ |
| MultimodalTransitPoint | . | MultimodalTransitPoint is facility that allows travelers to and freight to easily transition betw... | ^ |
| MilitaryBase | . | A MilitaryBase is a facility directly owned and operated by or for the military or one of its bra... | ^ |
| Facility | . | A Facility is a place for doing something, or a place that facilitates an activity.[Wikipedia] | ^ |
| EducationalCampus | . | An EducationalCampus is the land on which a college or University and related institutional bui... | ^ |
| FlowRegion | 21 | FlowRegion is a class of things whose boundaries are relatively stable but whose constitutive m... | ^ |
| SpaceRegion | 4 | The class of all Regions which are not GeographicAreas. | ^ |
| Outdoors | . | Any Region which is not enclosed by a Building or part of a Building. | ^ |
| Indoors | . | Any Region which is enclosed by a Building. | ^ |
| SittingArea | . | SittingArea refers to a Region, either Indoor (like a Living Room) or Outdoor (like a Garde... | ^ |
| KitchenArea | 1 | a KitchenArea refers to a Region, either Outdoors or Indoors, that is intended for Cookin... | ^ |
| DiningArea | 2 | a DiningArea refers to a Region, either Outdoors or Indoors, that is intended for Eating | ^ |
| MagneticField | . | Region around a magnet or moving charged particle where the force of magnetism acts. | ^ |
| UnderwaterRegion | . | A Region that is under the surface of some Water. | ^ |
| Road | . | A path along which vehicles travel. It is typically, although not necessarily, paved and intended f... | ^ |
| PointInSpace | . | PointInSpace is a Region. | ^ |
| LineInSpace | 1 | LineInSpace is a Region.Any LineInSpace contains at least two PointInSpace (points in spa... | ^ |
| PlaneInSpace | . | PlaneInSpace is a Region. It is an infite plane where any pair of infinite LineInSpaces that ... | ^ |
| Patio | 1 | Patio refers to an Region adjoining a building, usually Paved, that is used for outdoor activ... | ^ |
| HoleRegion | 13 | A hole is an immaterial body located at the surface of an Object. Since every HoleRegion is ont... | ^ |
| GeographicArea | 1324 | A geographic location, generally having definite boundaries. Note that this differs from its immedi... | ^ |
| Transitway | 58 | Transitway is the broadest class of regions which may be passed through as a path in instances ... | ^ |
| Latitude | . | Latitude is the class of Regions, associated with areas on the Earth's surface, which are paral... | ^ |
| Longitude | . | Longitude is the class of Regions, associated with areas on the Earth's surface, which are meri... | ^ |
| PerimeterArea | 1 | A PerimeterArea is a region that extends outward from a boundary with another region, surrounding... | ^ |
| RealEstate | . | Land, including all the natural resources and permanent buildings on it. | ^ |
| AssemblyStation | . | An AssemblyStation is a StationaryArtifact in Manufacture (ing) where individual parts are co... | ^ |
| PlayArea | . | PlayArea refers to a Region where children engage in recreational activities | ^ |
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