{HEAD ~ The profiling indices} result in {TAIL ~ a reduction} of the number of records that are searched when searching for a sub string match within that column 
result in
{ HEAD ~ The profiling indices } result in { TAIL ~ a reduction } of the number of records that are searched when searching for a sub string match within that column
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH