Airplanes have transponders which receive and transmit signals to communicate {TAIL ~ information} regarding {HEAD ~ the flight} of the airplane 
Airplanes have transponders which receive and transmit signals to communicate { TAIL ~ information } regarding { HEAD ~ the flight } of the airplane
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH