Assertion: tennis ball | /r/HasProperty | hollow
Facets:
Source sentences:
text: A tennis ball is hollow and composed of inflated rubber covered with a fabric.
text: A tennis ball is hollow and composed of inflated rubber, covered with a fabric which must be uniform.
text: Because tennis balls are hollow, and their mass is concentrated far from the center of the ball, they have a larger moment of inertia and will be more resistant to rotation relative to uniform density solid balls with the same radius and mass.