Assertion: seahorse's head | /r/HasProperty | lowered
Facets:
Source sentences:
text: If the seahorse suddenly lifts its head, an edge will slip under the coronet, and when the head is lowered again, the edge will snap out with a clicking/snapping sound.
text: When a seahorse suddenly lifts its head, this edge slips under the coronet, and then, as the head is lowered, snaps out, an action which presumably produce the sound.