(subclass ClosedTwoDimensionalFigure TwoDimensionalFigure) | Merge.kif 17992-17992 | Closed two dimensional figure is a subclass of two dimensional figure |
(subclass Polygon ClosedTwoDimensionalFigure) | Mid-level-ontology.kif 5500-5500 | Polygon is a subclass of closed two dimensional figure |
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