Assertion: polar bear's fur | /r/HasProperty | poor insulator
Facets:
Source sentences:
text: However, the fur is a poor insulator when it becomes wet.
text: The thick fur is a poor conductor of heat, so it minimizes heat loss from the body after trapping air from surroundings.
text: Polar bears like to be clean and dry because matted, dirty, and wet fur is a poor insulator.