Assertion: mastiff's puppy | /r/CapableOf | take quite a while
Facets:
value: to reach maturity
type: PURPOSE
Source sentences:
text: Because the Mastiff is such a large dog, puppies take quite a while to reach maturity – in fact, many breeders keep Mastiff puppies until they are 12 weeks old to ensure that they are fully ready to go to their new homes.