Assertion: seal's lifespan | /r/HasProperty | 9 years
Facets:
Source sentences:
text: The average lifespan of a Northern Elephant Seal is 9 years, while the average lifespan of a Southern Elephant Seal is 20-22 years.
text: The average lifespan of a Northern Elephant Seal is 9 years, while the average lifespan of a Southern Elephant Seal is 21 years.