Assertion: snail's part | /r/HasProperty | head
Facets:
Source sentences:
text: The visible parts are the shell, foot, head, and the part which distinguishes all Apple snails, the shell door – operculum (except in the Pilla, their door calcifies at the inside).
text: A snail’s body consists of five main parts – the head, the neck, the visceral hump, the tail and the foot.