Assertion: electric toothbrush's bristle | /r/MadeOf | nylon
Facets:
value: usually
type: TEMPORAL
Source sentences:
text: Bristles are commonly made of nylon (which, while not biodegradable, as plastic is, may still be recycled) or bamboo viscose.
text: Whilst the bristles are still made of nylon, the bamboo will biodegrade and there is some evidence to suggest particular types of nylon are biodegradable.
text: The bristles, which are usually made of nylon, are positioned into the core of the handle automatically.