{HEAD ~ throttle valve opening sensing means} connected to {TAIL ~ said throttle valve} for generating an electrical signal corresponding to the opening of said throttle valve 
connected to
{ HEAD ~ throttle valve opening sensing means } connected to { TAIL ~ said throttle valve } for generating an electrical signal corresponding to the opening of said throttle valve
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH