Terminal 501 1 is {HEAD ~ an example} of {TAIL ~ such a terminal}, as depicted in FIG 5 
of
Terminal 501 1 is { HEAD ~ an example } of { TAIL ~ such a terminal } , as depicted in FIG 5
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH