Assertion: parallelogram's side | /r/HasProperty | x y
Facets:
Source sentences:
text: The left and right sides ( X Y and Z W ) are also parallel.
text: Opposite sides are congruent -- The base side ( Y Z ) and the top side ( W X ) of our parallelogram are equal in length (congruent); the left side ( X Y ) and right side ( Z W ) are also congruent