Assertion: body's surface | /r/HasProperty | two-dimensional
Facets:
Source sentences:
text: The surface of a (continuous) sphere, for example, is two-dimensional (it has no “substance” or “divisible bulk”), the Mason-Dixon Line is one-dimensional (it has “length” but no “breadth”), and a boundary point such as the vertex of a cone is zero-dimensional (it extends in no direction).