Assertion: stingray's tail | /r/HasProperty | thin
Facets:
Source sentences:
text: The body is flat and they feature a tail that is long and thin.
text: The tail of the Brown stingray is thin and is also filled with venom.
text: Its tail is thin and whip-like, and lacks fin folds.
text: Stingrays have a very long and thin tail with a sharp point at the end.