Assertion: basking shark's jaw | /r/AtLocation | the skull
Facets:
value: firmly
type: MANNER
value: by ligaments
type: CAUSE
value: by muscles
type: CAUSE
Source sentences:
text: Sharks have two movable jaws attached to the skull by muscles and ligaments.
text: In most animals, the lower jaw moves freely but the upper jaw is firmly attached to the skull.