The first reflecting surface reflects light emitted from the light source into {HEAD ~ a forward direction} of {TAIL ~ the vehicle light} 
of
The first reflecting surface reflects light emitted from the light source into { HEAD ~ a forward direction } of { TAIL ~ the vehicle light }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL