{HEAD ~ The pressurized air supply} 28 energizes the dispenser valves in {TAIL ~ the pump station} 13 
{ HEAD ~ The pressurized air supply } 28 energizes the dispenser valves in { TAIL ~ the pump station } 13
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH