Assertion: exoskeleton | /r/CapableOf | get tight
Facets:
value: a bit
type: TEMPORAL
Source sentences:
text: Every couple months, when its exoskeleton is getting a bit tight, a mantis shrimp splits his or her outer body covering and wriggles out of it, leaving behind an almost perfect, but empty, mantis shrimp mold, complete with eyes and limbs.