Assertion: hummingbird | /r/CapableOf | change the color of their feathers
Facets:
Source sentences:
text: Hummingbirds have lower number of feathers compared to other birds (less than 1000), but they are known as "the flying jewels" because they are able to change the color of their feathers when they fly.
text: Hummingbirds have a distinctive feature that they can change the color of their feathers even while flying in the light