for each value, combining its respective entries from each of the built indices to generate a composite entry, the composite entry indicative of whether {HEAD ~ all the search substrings} occur within {TAIL ~ the value} 
occur within
for each value , combining its respective entries from each of the built indices to generate a composite entry , the composite entry indicative of whether { HEAD ~ all the search substrings } occur within { TAIL ~ the value }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL