{HEAD ~ The second sensor} is adapted to send {TAIL ~ input} to the control device when triggered by a passing second vehicle on the second street prompting it for switching the lights to green for the second street 
is adapted to send
{ HEAD ~ The second sensor } is adapted to send { TAIL ~ input } to the control device when triggered by a passing second vehicle on the second street prompting it for switching the lights to green for the second street
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH