Assertion: manta ray | /r/CapableOf | show curious behavior
Facets:
value: at the approach of humans
type: OTHER
Source sentences:
text: They are devoid of the poisonous sting that many of their relatives do have, and have shown a curious behavior at the approach of humans.
text: Manta rays are quiet and peaceful beings that pose no danger to humans and have shown a curious behaviour at the approach of humans.