Assertion: flamingo's jaw | /r/HasProperty | upper
Facets:
Source sentences:
text: They have the upper jaw much narrower than the maxilla or lower jaw as shown in the photo.
text: Their upper and lower jaws have ridged edges that serve as a filter, straining out water and mud at the sides of the bill, so the bird swallows little except its prey.
text: Its upper jaw is movable and not rigidly fixed to its skull.
text: The greater flamingo feeds with its head down, and its upper jaw is movable and not rigidly fixed to its skull.
text: The greater flamingo feeds with its head down, and its upper jaw is movable and not rigidly fixed to its skull.