Assertion: octahedron | /r/HasProperty | rectified tetrahedron
Facets:
Source sentences:
text: The octahedron can also be considered a rectified tetrahedron - and can be called a tetratetrahedron.
text: The octahedron is also a rectified tetrahedron.
text: The octahedron can also be considered a rectified tetrahedron.