According to {HEAD ~ one embodiment} of the invention, the comparator 515 includes the application of heuristics 530 to {TAIL ~ the comparison} 
According to { HEAD ~ one embodiment } of the invention , the comparator 515 includes the application of heuristics 530 to { TAIL ~ the comparison }
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL