{HEAD ~ An important feature} of the present invention consists in {TAIL ~ the discovery} that certain of the output signals in the pattern shown in FIG 5 can be grouped into a recognition pattern as indicated at 54 
consists in
{ HEAD ~ An important feature } of the present invention consists in { TAIL ~ the discovery } that certain of the output signals in the pattern shown in FIG 5 can be grouped into a recognition pattern as indicated at 54
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH