Assertion: beaver | /r/HasProperty | nature's engineers
Facets:
value: truly
type: OTHER
value: because of their dam building activities
type: CAUSE
Source sentences:
text: Beaver are considered to be "nature's engineers" because of their dam building activities.
text: Beaver are truly “Nature’s Engineers”!
text: Known as “nature’s engineers”, the beavers, large nocturnal semi-aquatic rodents, are famous for their ability to build impressive dams known as beaver dams.