Assertion: friction | /r/HasProperty | complex phenomenon
Facets:
value: very
type: DEGREE
Source sentences:
text: Friction is in fact a very complex phenomenon which cannot be represented by a simple model.
text: Clearly friction is a complex subject, and the discoveries of modern physics only promise to add to that complexity.
text: Even though friction is an extremely complex phenomenon, there is a very simple relationship between the magnitude of the frictional force and the normal force.