Assertion: vireo's bill | /r/HasProperty | dark brown
Facets:
value: in most swallows
type: LOCATION
Source sentences:
text: The structure of the syrinx is substantially different between the two subfamilies; and in most swallows, the bill, legs, and feet are dark brown or black, but in the river martins, the bill is orange-red and the legs and feet are pink.