Assertion: cockatoo's feather | /r/Causes | green
Facets:
Source sentences:
text: They differ however in a number of characteristics, including the presence of a gallbladder, some other anatomical details and their lack of the structures in the feathers which cause the bright blues and greens seen in true parrots.
text: They differ however in a number of characteristics, including the presence of a gallbladder, some other anatomical details and their lack of the structures in the feathers which cause the bright blues and greens seen in true parrots.