Assertion: mollusk's foot | /r/ObjectUse | used for burrowing
Facets:
value: for attaching to wood
type: PURPOSE
value: in mud
type: LOCATION
value: in sand
type: LOCATION
Source sentences:
text: The foot of a bivalve mollusk is a bulbous or tonguelike organ that is used for burrowing in sand or mud.
text: The foot of bivalves is used either for burrowing or for attaching to wood or other material.