Assertion: lemur's call | /r/HasProperty | heard
Facets:
Source sentences:
text: The loudest lemur is the indri, whose calls can be heard up to 2 km (1.2 mi) or more and thus communicate more effectively the territorial boundaries over its 34 to 40 hectares (0.13 to 0.15 sq mi) home range.
text: Members of the group communicate using specific, high-pitched calls that can be heard up to 1.2 miles away.