Assertion: crop | /r/HasProperty | hidden by feather
Facets:
Source sentences:
text: While a bird's crop is part of its internal anatomy and is hidden by feathers, a gular pouch is often brightly colored and visible most of the time.
text: While a bird's crop is part of its internal anatomy and is hidden by feathers, a gular pouch is often brightly colored and visible most of the time.