Assertion: dart frog | /r/Synonym | dart frogs
Facets:
value: due to the fact
type: CAUSE
value: often
type: TEMPORAL
Source sentences:
text: Poison dart frogs are often known as dart frogs or poison arrow frogs due to the fact that the tribes-people living close to the poison dart frogs, would use their poison in order to tip the ends of their arrows and blow-darts.