Assertion: penguin's type | /r/HasProperty | bray
Facets:
Source sentences:
text: There are three types of calls used: a bray, used to attract a mate; the yell, used to defend their territory; and the haw, used by mates to locate each other when one is on land and one is at sea.
text: These sounds and vocalizations are unique in each African penguin, and are of three types: bray (to attract mates), yell (to protect their territory), and haw (to distinguish their mates when they are apart).