Assertion: mollusk's shell | /r/HasAspect | chamber
Facets:
value: unlike snails
type: OTHER
value: with the animal
type: OTHER
Source sentences:
text: The Nautilus shell is divided into chambers which are used to maintain buoyancy at different depths by increasing or reducing the amount of air in each chamber.
text: Ammonites have a spiral shell divided into chambers.
text: Unlike snails, the spiraled shell of the nautilus is divided into chambers with the animal occupying the outermost chamber.