Assertion: pigeon | /r/HasAspect | soft swellings
Facets:
value: at the base of the nostrils
type: LOCATION
Source sentences:
text: All pigeons have soft swellings (ceres) at the base of the nostrils, feed their young with pigeon's milk regurgitated from the crops of the parents, and have specialized bills through which they can suck up water steadily, unlike other birds.