Assertion: unicorn's horn | /r/HasProperty | narwhal horns
Facets:
Source sentences:
text: In reality, these horns are likely narwhal horns that were sold by traders from the north.
text: Unicorns became allied with reports of exotic creatures from the north or the sea, because the horns were actually narwhal horns or elephant tusks, but this gave them their reputation of being elusive – things you could never quite see and never catch.