Assertion: gastropod's foot | /r/ObjectUse | used for locomotion
Facets:
Source sentences:
text: Mollusks have a muscular foot, which is used for locomotion and anchorage, and varies in shape and function, depending on the type of mollusk under study.
text: The ventral foot is used in locomotion.
text: The foot extends from the shell next to the head and is used for locomotion and grasping prey or a substrate when feeding on algae.