Assertion: engine | /r/CapableOf | use one or more camshafts
Facets:
value: as in the illustration
type: OTHER
value: above each row
type: LOCATION
Source sentences:
text: Many engines use one or more camshafts “above” a row (or each row) of cylinders, as in the illustration, in which each cam directly actuates a valve through a flat tappet.