Assertion: sperm whale's series | /r/ObjectUse | used for communication
Facets:
value: for echolocation
type: PURPOSE
Source sentences:
text: These popular leviathans are vocal and emit a series of “clangs” that may be used for communication or for echolocation.
text: We are very vocal and emit a series of “clangs” or “clicks” that are used for communication and echolocation.