{HEAD ~ An electronic switch} is associated with each ignition coil and has {TAIL ~ a trigger} which responds to an applied trigger voltage to conduct and discharge the capacitor through the ignition coil 
has
{ HEAD ~ An electronic switch } is associated with each ignition coil and has { TAIL ~ a trigger } which responds to an applied trigger voltage to conduct and discharge the capacitor through the ignition coil
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH