A system for controlling {HEAD ~ a headlight} of {TAIL ~ a vehicle} to be controlled, the system comprising: 
of
A system for controlling { HEAD ~ a headlight } of { TAIL ~ a vehicle } to be controlled , the system comprising :
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH