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