Assertion: narwhal's tusk | /r/AtLocation | male narwhals
Facets:
value: predominantly
type: DEGREE
value: most commonly
type: DEGREE
Source sentences:
text: The tusk is most commonly found on male narwhals.
text: The tusk is predominantly found among male narwhals, and for this reason, many scientists believe the tusk may play a role in their ability to successfully mate with females.