Assertion: american bulldog | /r/CapableOf | mature until the age of two
Facets:
value: later than many other breeds
type: TEMPORAL
value: confident at maturity
type: OTHER
value: be as puppies
type: TEMPORAL
Source sentences:
text: They mature later than many other breeds, not until the age of two, and as puppies they will be curious yet aloof with strangers, but confident at maturity.