Assertion: ferret's lifespan | /r/HasProperty | 5 to 7 years
Facets:
value: inside a dog
type: LOCATION
Source sentences:
text: The average lifespan of a ferret is 5 to 7 years, but with good health care and feeding some can reach 10.
text: Inside a dog, a heartworm’s lifespan is 5 to 7 years.