Assertion: whale's tusk | /r/HasProperty | long ivory
Facets:
Source sentences:
text: The narwhal whale is unique animal among the whale species as it is the only cetacean that is known to have a long ivory tusk that extends from the upper left side of its jaw, which can measure up to 7 – 10 feet in length.
text: The tusk of narwhals is in fact, a long tooth that has sensory capabilities and millions of nerve endings.