Assertion: mussel | /r/HasAspect | interlocking hinge teeth
Facets:
value: to help keep the two valves
type: PURPOSE
value: on the inside of the shell
type: LOCATION
Source sentences:
text: Some mussels have interlocking hinge "teeth" (pseudocardinal teeth and lateral teeth) on the inside of the shell to help keep the two valves in proper alignment.