Assertion: raven | /r/CapableOf | mate for life
Facets:
Source sentences:
text: It is believed that ravens mate for life, after pairing up soon after attaining sexual maturity.
text: Most ravens will mate for life, and usually keep the same nest year after year.
text: Ravens are extremely intelligent, on the scale of dolphins or chimpanzees, very playful, can imitate human speech and the sounds of objects like car engines, and they mate for life.
text: Once winter is over though, these birds tend to pair up or form small groups and it is believed that the Raven will mate for life.
text: They are social or can be solitary and are loyal as they mate for life.