Assertion: killer whale's lifespan | /r/HasProperty | about 50 years
Facets:
Source sentences:
text: The average lifespan of a wild killer whale is about 50 years.
text: The lifespans of wild females average 50 years.
text: The average lifespan for females Killer Whales is about 50 years.
text: The average lifespan of a wild killer whale is about 50 years.