Assertion: tetrahedron's volume | /r/HasProperty | removed
Facets:
value: from them
type: OTHER
Source sentences:
text: The Complements are a representation of the volume being removed from Sierpinski's tetrahedron in iterative stages.
text: They are there because I didn't want to leave them out of the picture, but they are without Complement structures because no volume has been removed from them.