Assertion: cam | /r/CapableOf | operate valve
Facets:
value: in most cases
type: TEMPORAL
value: directly
type: MANNER
Source sentences:
text: Depending on the location of the camshaft, the cam operates the valves either directly or through a linkage of pushrods and rockers.
text: In most cases, the cam directly actuates the valve without the use of a rocker arm (it may or may not have a "lifter" between the cam and the valve).