{TAIL ~ A search key} can be compared to the differentiating values to determine {HEAD ~ which entry} is most likely to match 
{ TAIL ~ A search key } can be compared to the differentiating values to determine { HEAD ~ which entry } is most likely to match
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH