Assertion: bowerbird's creation | /r/HasProperty | caterpillar cocoon
Facets:
Source sentences:
text: Creations of spider’s web, caterpillar cocoon, plant down, mud, found modern objects, human and animal hair, mosses, lichen, feathers and down, sticks and twigs—all are woven with beak and claw into a bird’s best effort to protect their next generation.