Assertion: oyster's pearl | /r/CapableOf | begin its life
Facets:
value: inside an oyster's shell
type: LOCATION
Source sentences:
text: A natural pearl begins its life inside an oyster's shell when an intruder, such as a grain of sand or bit of floating food, slips in between one of the two shells of the oyster, a type of mollusk, and the protective layer that covers the mollusk's organs, called the mantle.