{HEAD ~ means} for aiming said laser beam at {TAIL ~ said workpiece} comprising a reflector disposed between said laser and said workpiece 
{ HEAD ~ means } for aiming said laser beam at { TAIL ~ said workpiece } comprising a reflector disposed between said laser and said workpiece
HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH