Assertion: icosahedron's face | /r/CapableOf | lie on parallel planes
Facets:
Source sentences:
text: Two faces are equilateral, lie on parallel planes, and have a common axis of symmetry.
text: In the icosahedron, opposite triangular faces lie in parallel planes, and each is related to the other in its orientation by a half turn.
text: : Two faces are equilateral, lie on parallel planes, and have a common axis of symmetry.