Assertion: frog's color | /r/HasProperty | warning
Facets:
value: to predators
type: TRANSITIVE-OBJECT
value: in nature
type: LOCATION
value: often
type: TEMPORAL
Source sentences:
text: The very bright colors of the poison arrow frogs, characteristic of many toxic species, are a warning to predators.
text: In nature, bright colors are often a warning sign to ward off potential predators.
text: These beautiful colors are warnings to potential predators that the frog are poisonous.