Assertion: compressor's piston | /r/CapableOf | help to create the seal
Facets:
value: inside the combustion chamber
type: LOCATION
Source sentences:
text: A piston ring is a piece of metal on the piston that helps to create the seal inside the combustion chamber.
text: A piston ring is a piece of metal on the piston that helps to create the seal inside the combustion chamber.