Assertion: narwhal's tusk | /r/CapableOf | develop in male
Facets:
value: on rare occasions
type: TEMPORAL
value: mostly
type: DEGREE
value: occasionally
type: DEGREE
Source sentences:
text: However, on rare occasions two tusks may develop in females as well as males.
text: Occasionally one or even two tusks develop in a female.
text: Measuring up to 3 meters (9 feet) long, the tusk develops mostly in males as an elongated left tooth of the upper jaw.
text: However, on rare occasions two tusks may develop in females as well as males.