Assertion: elephant's tusk | /r/MadeOf | ivory
Facets:
Source sentences:
text: The tusks of elephants are elongated incisor teeth and are made of Ivory.
text: Elephants are known for their large ears, tusks made of ivory and their trunks – which are actually a fusion of their nose and upper lip.
text: Tusks are made of ivory, which is an incredibly dense form of bone.
text: An elephant is characterized by thick skin, tusks made of ivory, large pillar-like legs, large flapping ears, and a proboscis, or flexible trunk, that is a fusion of the nose and upper lip.