Assertion: copperhead | /r/HasProperty | poisonous snake
Facets:
value: with a broad triangular head
type: OTHER
Source sentences:
text: A copperhead is a poisonous snake that will leave teeth marks behind when biting your pet.
text: The copperhead is a poisonous snake that lives in North America.
text: The copperhead is a poisonous snake with a broad triangular head, vertically elliptical pupils and a heat sensitive pit between each eye and nostril.