Assertion: polar bear | /r/Desires | their fur
Facets:
value: for insulation
type: PURPOSE
value: by oil
type: OTHER
value: during harsh winters
type: TEMPORAL
value: for soiling
type: PURPOSE
Source sentences:
text: Because polar bears rely partly on their fur for insulation and soiling of the fur by oil reduces its insulative value, oil spills put bears at risk of dying from hypothermia.
text: Polar bears depend on their fur for insulation during harsh winters.