#rectangularity__oblongness  the property of being shaped like a rectangle
  supertype:  #angularity  the property possessed by a shape that has angles
  subtype:  #orthogonality  the quality of lying or intersecting at right angles
  subtype:  #perpendicularity  the quality of being at right angles to a given line or plane (especially the plane of the horizon)
  subtype:  #squareness  the property of being shaped like a square

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