Assertion: bumble bee | /r/CapableOf | use their wings
Facets:
value: as fans
type: MANNER
value: to reduce the heat
type: PURPOSE
value: to cool down their nests
type: PURPOSE
Source sentences:
text: Bumble bees use their wings to cool down their nests.
text: Since bumble bees can flap their wings 200 times per second, they are able to use their wings as fans to reduce the heat inside their nests.