Assertion: porcupine's quill | /r/CapableOf | harden after birth
Facets:
value: within hours
type: TEMPORAL
value: gradually
type: MANNER
Source sentences:
text: Porcupettes are born with quills but, luckily for the mother, these quills are soft and only harden a few hours after birth.
text: The newborn is given birth about seven months after mating; it is born with soft quills that gradually harden up a few hours after birth.
text: Their quills harden soon after birth.
text: Porcupettes are born with soft quills that harden a few hours after birth, providing quick protection against predators.
text: May. Baby porcupines are born with soft quills, which harden a few hours after birth.
text: Porcupettes are born with soft quills that harden a few hours after birth, providing quick protection against predators.
text: Crested porcupines are born with soft quills that harden within hours after birth.