Assertion: narwhal's tusk | /r/CapableOf | grow to 9 feet
Facets:
Source sentences:
text: The tusk can grow to 9 feet (3 meters) long and weigh more than 22 pounds (10 kilograms).
text: The tusk can grow up to 9 feet (2.7 meters) or more, which is amazing when you consider that the male is only about 15 feet (4.6 m) long at maturity.