Assertion: cassowary's claw | /r/HasProperty | effective
Facets:
value: for self-defense
type: PURPOSE
value: very
type: DEGREE
Source sentences:
text: The massive claws are effective in rummaging through the rainforest leaf-litter for food, and also are capable of killing would-be predators including humans.
text: — if they think they're threatening them, and the claw is a very effective tool for self-defense," Davis said.