Assertion: stingray's barb | /r/ObjectUse | used in self-defense
Facets:
Source sentences:
text: The toxic barb is used in self-defense and the tail is whipped over their body much like the action of a desert scorpion.
text: The barb on its tail is serrated and covered in a venomous mucus, used for self-defense.
text: The Stingrays tail features a poisonous barb which is used only in self-defense.