Assertion: raven's lifespan | /r/HasProperty | 10 – 15 years
Facets:
value: in the wild
type: LOCATION
Source sentences:
text: The average lifespan of ravens is 10 – 15 years in the wild with the longest living raven died at an age of 23 years.
text: The lifespan of ravens is about 10 – 15 years in the wild.