Assertion: mollusk's shell | /r/HasAspect | three layers
Facets:
value: for extra strength
type: PURPOSE
Source sentences:
text: The shell has three layers namely the tough outer shell, the middle shell is chalky and the inner layer that lies next to the animals skin is shiny that is called a mother-of-pearl in some bivalve mollusks.
text: The shell has three layers for extra strength: a tough outer layer, a chalky middle layer, and a shiny inner layer, next to the animal’s skin.
text: The shell has three layers.
text: The shell has three layers.