Assertion: peregrine falcon's feather | /r/HasProperty | replaced by juvenile feathers
Facets:
value: in about three to five weeks
type: TEMPORAL
value: gradually
type: MANNER
Source sentences:
text: The downy white feathers the nestlings have when they hatch are replaced by juvenile feathers in about three to five weeks.
text: The downy white feathers the nestlings have when they hatch are gradually replaced by juvenile feathers in about three to five weeks.