{HEAD ~ An ignition coil} and spark plug are associated with each cylinder of {TAIL ~ the engine} 
{ HEAD ~ An ignition coil } and spark plug are associated with each cylinder of { TAIL ~ the engine }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL