FIG 5 is of course {HEAD ~ just one possible example} of {TAIL ~ a lookup} in which the invention may be implemented 
of
FIG 5 is of course { HEAD ~ just one possible example } of { TAIL ~ a lookup } in which the invention may be implemented
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH