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Term 1: Term 2:

(subclass TwoDimensionalFigure GeometricFigure) Merge.kif 17817-17817
(subclass OpenTwoDimensionalFigure TwoDimensionalFigure) Merge.kif 17823-17823
(subclass ClosedTwoDimensionalFigure TwoDimensionalFigure) Merge.kif 17831-17831


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