Assertion: polar bear's coat | /r/MadeOf | water repellant hair
Facets:
value: on top of a dense undercoat
type: LOCATION
Source sentences:
text: Their white or yellowish coat is made of water repellant hair on top of a dense undercoat.
text: Its white coat, made of water repellant hair on top of a dense undercoat, serves as camouflage and acts to reflect sunlight to the bears black skin.