Assertion: coil | /r/ObjectUse | used with one coil
Facets:
value: for one coil
type: PURPOSE
value: for each spark plug
type: PURPOSE
Source sentences:
text: Much smaller coils are used with one coil for each spark plug or one coil serving two spark plugs (for example two coils in a four-cylinder engine, or three coils in a six-cylinder engine).