Assertion: altruism | /r/HasProperty | documented
Facets:
value: vastly
type: DEGREE
Source sentences:
text: Interesting subject, needs close attention and exposition of various points of views (not only "Altruism is vastly documented", which sounds like a very anthropomorphic beginning - just to start the debate :-)
text: Some wildlife researchers believe that altruism—defined as an act in which an animal sacrifices its own well-being for the benefit of another animal—is a well-documented behavior.