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Corresponds roughly to the class of ordinary objects. Examples include normal physical objects, geographical regions, and locations of Processes, the complement of Objects in the Physical class. In a 4D ontology, an Object is something whose spatiotemporal extent is thought of as dividing into spatial parts roughly parallel to the time-axis.
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atmosphere | Atmosphere is a Mixture of gases surrounding any celestial object that has a gravitational field strong enough to prevent the gases from escaping. |
| | dining area | a DiningArea refers to a Region, either Outdoors or Indoors, that is intended for Eating |
| | flow region | FlowRegion is a class of things whose boundaries are relatively stable but whose constitutive material is continuously moving through the region itself and being replaced by other, similar material. Each FlowRegion is constituted by a stream of matter moving as a whole. A FlowRegion may be liquid or gaseous. A wind may be considered as a Process or as a FlowRegion, similarly an OceanCurrent or a WaterWave. The motion process associated with a FlowRegion F is denoted by (FlowFn F). Note that certain properties belong to the FlowRegion itself (e.g., mass, length, volume, temperature, and speed or velocity of the region moving as a whole), while other properties of interest belong to the Motion of its constitutive stuff (e.g., velocity, direction). The motion of a FlowRegion as a whole (e.g., JetStream moves within the atmosphere) is distinguished from the motion of the pieces of stuff constituting the FlowRegion. See FlowFn and FlowRegionFn. |
| | geographic area | A geographic location, generally having definite boundaries. Note that this differs from its immediate superclass Region in that a GeographicArea is a three-dimensional Region of the earth. Accordingly, all astronomical objects other than earth and all one-dimensional and two-dimensional Regions are not classed under GeographicArea. |
| | hole | A hole is an immaterial body located at the surface of an Object. Since every Hole is ontologically dependent on its host (i.e., the object in which it is a hole), being a Hole is defined as being a hole in something. Note that two Holes may occupy the same region, or part of the same region, without sharing any parts. Any two hosts of a hole have a common proper part that entirely hosts the hole. A common host of two holes hosts all parts of the sum of those holes. Any object that includes the host of a hole is a host of that hole, unless its parts also include parts of that very hole. Overlapping holes have overlapping hosts. No hole is atomic. Holes are connected with their hosts. No hole can have a proper part that is externally connected with exactly the same things as the hole itself. |
| | hydrophilic side | The class of hydrophilic sides of lipid bilayers. |
| | hydrophobic side | The class of hydrophobic sides of lipid bilayers. |
| | indoors | Any Region which is enclosed by a Building. |
| | kitchen area | a KitchenArea refers to a Region, either Outdoors or Indoors, that is intended for Cooking |
| | latitude | Latitude is the class of Regions, associated with areas on the Earth's surface, which are parallels measured in PlaneAngleDegrees from the Equator. |
| | longitude | Longitude is the class of Regions, associated with areas on the Earth's surface, which are meridians measured in PlaneAngleDegrees from the PrimeMeridian through GreenwichEnglandUK. |
| | outdoors | Any Region which is not enclosed by a Building or part of a Building. |
| | parking area | A ParkingRegion is a Region where TransportationDevice is kept temporarily |
| | patio | Patio refers to an Region adjoining a building, usually Paved, that is used for outdoor activities |
| | perimeter area | A PerimeterArea is a region that extends outward from a boundary with another region, surrounding or partially surrounding it, but which is not part of that other region. See BorderFn and PerimeterAreaFn. |
| | playground | PlayArea refers to a Region where children engage in recreational activities |
| | real estate | Land, including all the natural resources and permanent buildings on it. |
| | road | A path along which vehicles travel. It is typically, although not necessarily, paved and intended for cars. |
| | sitting area | SittingArea refers to a Region, either Indoor (like a Living Room) or Outdoor (like a Garden sitting area) where people normally sit and entertain guests |
| | space region | The class of all Regions which are not GeographicAreas. |
| | transit route | TransitRoute is the class of Regions that are paths for Motion from one place to another. |
| | transit stop | TransitStop is the subclass of places where a vehicle of a scheduled or common carrier makes a stop to discharge or take on passengers or goods. |
| | transitway | Transitway is the broadest class of regions which may be passed through as a path in instances of Translocation. Transitway includes land, air, and sea regions, and it includes both natural and artificial transitways. |