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Relationships
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Square | Any Rectangle whose sides are all equal. |
| Instances | Abstract | Properties or qualities as distinguished from any particular embodiment of the properties/qualities in a physical medium. Instances of Abstract can be said to exist in the same sense as mathematical objects such as sets and relations, but they cannot exist at a particular place and time without some physical encoding or embodiment. |
| | Attribute | Qualities which we cannot or choose not to reify into subclasses of. |
| | ClosedTwoDimensionalFigure | Any TwoDimensionalFigure which has a well defined interior and exterior. |
| | Entity | The universal class of individuals. This is the root node of the ontology. |
| | GeometricFigure | The class of all geometric figures, i.e. the class of all abstract, spatial representations. The instances of this class are GeometricPoints, TwoDimensionalFigures or ThreeDimensionalFigures. |
| | InternalAttribute | Any Attribute of an Entity that is an internal property of the Entity, e.g. its shape, its color, its fragility, etc. |
| | Polygon | A ClosedTwoDimensionalFigure that is composed exclusively of straight lines, i.e. OneDimensionalFigures. |
| | Quadrilateral | Any four-sided Polygon. |
| | ShapeAttribute | Any Attribute that relates to the shape of an Object. |
| | StructureAttribute | Each subclass of StructureAttribute denotes some facet of the structure of physical entities. Each instance of StructureAttribute denotes some structural characteristic that may pertain to some Physical entity. |
| | TwoDimensionalFigure | The class of GeometricFigures that have position and an extension along two dimensions, viz. plane figures like circles and polygons. |
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