Assertion: young beaver | /r/CapableOf | maintain the dam
Facets:
Source sentences:
text: Young beavers stay with their parents for 2 years and help them maintain the dam and lodges.
text: Young beavers stay with their parents for approximately two years, helping them to maintain their lodge and dam.
text: Young beavers stay with their parents for 2 years and help them maintain the dam and lodges.