Assertion: crustacean's exoskeleton | /r/CapableOf | form shield
Facets:
value: over the thorax
type: LOCATION
value: to create one hard shell
type: PURPOSE
value: often
type: TEMPORAL
value: over the back of the head
type: LOCATION
Source sentences:
text: The exoskeleton often forms a shield over the back of the head and the thorax to create one hard shell called the carapace.