Assertion: beaver's role | /r/HasProperty | important
Facets:
Source sentences:
text: Although beavers play an important role in the ecosystem, they can also cause problems that are sometimes more than a nuisance.
text: Beavers and their dams play an important role in nature.
text: Beavers are remarkable creatures, serving an important role in solving many of our planet’s major environmental problems.
text: Beavers play an important role in the taiga habitat.
text: Eurasian beavers play important role in the ecosystem of their range.