This spray is then carried downstream over {TAIL ~ the outward radial portion} of the flameholder 50 adjacent the wall of {HEAD ~ the liner} 6 
This spray is then carried downstream over { TAIL ~ the outward radial portion } of the flameholder 50 adjacent the wall of { HEAD ~ the liner } 6
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH