Assertion: head's structure | /r/CapableOf | move at right angles
Facets:
value: to the body
type: TRANSITIVE-OBJECT
Source sentences:
text: The mandibles (jaws) are a highly sclerotized pair of structures that move at right angles to the body, used for biting, chewing, and severing food.
text: The maxillae are paired structures that can also move at right angles to the body and possess segmented palps.