{HEAD ~ The lines} 6 6 indicate {TAIL ~ a magnified section} that is shown in FIG 6 
indicate
{ HEAD ~ The lines } 6 6 indicate { TAIL ~ a magnified section } that is shown in FIG 6
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH