{HEAD ~ The process} converts {TAIL ~ the major part} of the halide in the organic halide to hydrogen halide 
converts
{ HEAD ~ The process } converts { TAIL ~ the major part } of the halide in the organic halide to hydrogen halide
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH