Assertion: gull's food source | /r/HasProperty | promising
Facets:
Source sentences:
text: Although a gull locating a promising food source may perform distinctive aerial maneuvers to inform other gulls of his discovery, the pandemonium of feeding, fighting, and food stealing that soon erupts, with its cacophony of piteous and outraged screeching, would convince anyone that each and every gull lives indeed at the edge of starvation.