Assertion: narwhal | /r/CapableOf | break the tip of their tusk
Facets:
value: in the gap
type: LOCATION
value: occasionally
type: DEGREE
Source sentences:
text: Narwhals do occasionally break the tip of their tusk though which can never be repaired.
text: If one animal’s tusk gets broken off, another narwhal may even break off the tip of its own tusk in the gap, perhaps the ultimate altruistic gesture.