The mist discharge column 196 then moves back along the arc 202 to {HEAD ~ its point} of {TAIL ~ origin} 
of
The mist discharge column 196 then moves back along the arc 202 to { HEAD ~ its point } of { TAIL ~ origin }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL