Generally, the order in which {HEAD ~ the query terms} appear in {TAIL ~ the query} is insignificant 
appear in
Generally , the order in which { HEAD ~ the query terms } appear in { TAIL ~ the query } is insignificant
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH