Assertion: octahedron | /r/HasProperty | same shape
Facets:
Source sentences:
text: Octahedron family appears to be composed of identical blocks ("cubies" in the popular twisty-puzzle lingo), each puzzle is actually composed of two different types of blocks: octahedrons (same shape as the overall puzzle) and tetrahedrons (very different shape: a pyramid with a 3-sided base).