Assertion: penguin's sense | /r/HasProperty | average
Facets:
Source sentences:
text: Penguins have an average sense of hearing for birds; this is used by parents and chicks to locate one another in crowded colonies.
text: Penguins have an average sense of hearing for birds; this is used by parents and chicks to locate one another in crowded colonies.
text: Penguins have an average sense of hearing for birds (Wever et al 1969); this is used by parents and chicks to locate one another in crowded colonies (Jouventin et al 1999).