Assertion: flamingo's beak | /r/HasProperty | hooked marginal lamellae
Facets:
value: on the upper mandible
type: LOCATION
value: downward
type: MANNER
Source sentences:
text: To feed, it has evolved a specialized beak which is hooked downward and features marginal lamellae on the upper mandible, and inner and outer lamellae on both the upper and lower mandibles.