Assertion: bottle brush | /r/HasAspect | flexible bristles
Facets:
value: usually
type: TEMPORAL
value: very
type: DEGREE
Source sentences:
text: Since the necks of bottles are often narrower than the bases, a bottle brush usually has flexible bristles that allow it to slide past the neck into the base.
text: The narrowest bottle brushes usually have very flexible bristles plus a twisted-wire core with a top loop for easy gripping.