Assertion: ostrich's feather | /r/CapableOf | keep the bird
Facets:
value: from the sharp thorns
type: OTHER
Source sentences:
text: Its feathers provide great protection with their insulating abilities; keeping the bird cool in hot climates and warm in colder areas.
text: Feathers are the things which cover birds.
text: These feathers are not designed for flight but for protection in the cassowary's rain forest habitat, keeping the bird dry and safe from the sharp thorns found on many rain forest plants.