Assertion: petrel's back | /r/HasProperty | slate-gray
Facets:
value: slate
type: DEGREE
Source sentences:
text: This small petrel has a slate-gray back and upperwings marked by a black M-pattern, white underparts, under wings, and face with a small dark eye patch, black bill, blue-gray legs and feet, long slender wings, and a gray tail with black-tipped central feathers and white edges.
text: This small petrel has a slate-gray back and upperwings marked by a black M-pattern, white underparts, under wings, and face with a small dark eye patch, black bill, blue-gray legs and feet, long slender wings, and a gray tail with black-tipped central feathers and white edges.
text: This small petrel has a slate-gray back and upperwings marked by a black M-pattern, white underparts, under wings, and face with a small dark eye patch, black bill, blue-gray legs and feet, long slender wings, and a gray tail with black-tipped central feathers and white edges.