Assertion: koala's mother | /r/CapableOf | sound to one another
Facets:
Source sentences:
text: Koalas communicate using a range of noises, and mothers and babies make soft clicking, squeaking and murmuring sounds to one another.
text: Mothers and babies make soft clicking, squeaking sounds and gentle humming or murmering sounds to one another, as well as gentle grunts to signal displeasure or annoyance.