Assertion: mound's side | /r/HasProperty | 12 inches
Facets:
Source sentences:
text: 17 inches (43 cm) square with two of the corners removed so that one edge is 17 inches long, two adjacent sides are 8.5 inches (22 cm) and the remaining two sides are 12 inches (30 cm) and set at an angle to make a point.
text: Home plate is a 17-inch square of whitened rubber with two of the corners removed so that one edge is 17 inches long, two adjacent sides are 8 1/2 inches each and the remaining two sides are 12 inches each and set at an angle to make a point.