Assertion: icosahedron's vertex | /r/HasProperty | edge
Facets:
value: at each corner
type: LOCATION
Source sentences:
text: The icosidodecahedron has four special orthogonal projections, centered on a vertex, an edge, a triangular face, and a pentagonal face.
text: When a regular icosahedron is truncated, this means that each "corner" (or vertex) is replaced by a pentagon, as there are five edges at each corner.