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