Assertion: mastiff's lifespan | /r/HasProperty | a number of mastiffs
Facets:
Source sentences:
text: Their lifespan on average is between 8 to 10 years although there are a number of Mastiffs who live to be over 12 years and some who do not live toeven 8 years.
text: Their lifespan on average is between 8 to 10 years although there are a number of Mastiffs who live to be over 12 years and some who do not live to even 8 years.