Assertion: octahedron's vertex | /r/HasProperty | opposite
Facets:
value: on the "sides."
type: LOCATION
Source sentences:
text: The regular octahedron can be decomposed into two square pyramids by a plane constructed perpendicular to the space diagonal joining two opposite vertices.
text: Starting with a complete 24-cell, remove 8 orthogonal vertices (4 opposite pairs on 4 perpendicular axes), and the 8 edges which radiate from each, by cutting through 8 cubic cells bounded by √1 edges to remove 8 cubic pyramids whose apexes are the vertices to be removed.
text: The top and bottom vertices aren't connected to each other and neither are the two opposite vertices on the "sides." }