Assertion: lobster's exoskeleton | /r/HasProperty | hard protective
Facets:
Source sentences:
text: They are invertebrate arthropods, who possess hard protective exoskeleton and no backbone.
text: As it grows, a spiny lobster molts and loses its hard protective exoskeleton.
text: As it grows, a spiny lobster molts and loses its hard protective exoskeleton.