Assertion: narwhal | /r/HasProperty | known for its long spiral tusk
Facets:
Source sentences:
text: The narwhal or narwhale (Monodon monocerus) is a medium-sized toothed whale or odontocete, best known for its long spiral tusk that many people associate with the unicorn myth.
text: The narwhal or narwhale (Monodon monocerus) is a medium-sized toothed whale or odontocete, best known for its long spiral tusk that many people associate with the unicorn myth.