Assertion: mumble's feather | /r/HasProperty | juvenile
Facets:
Source sentences:
text: Before the first Happy Feet movie was released, Mumble was rumored to lose his juvenile feathers when he jumped off the ice cliff to stop the aliens from taking the fish.
text: In the conclusion of the book, Mumble is seen without his juvenile feathers.
text: Mumble is first seen without his juvenile feathers when he is in the aquarium.