{HEAD ~ A freight removal device} moves {TAIL ~ the freight} off of one side of the platform when the doors are moved to the open position 
moves
{ HEAD ~ A freight removal device } moves { TAIL ~ the freight } off of one side of the platform when the doors are moved to the open position
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH