{TAIL ~ a carriage} affixed to {HEAD ~ said reflector} and slidably mounted to said third rail 
{ TAIL ~ a carriage } affixed to { HEAD ~ said reflector } and slidably mounted to said third rail
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH