Preferably, the coded data includes at least one tag, each tag being indicative of {HEAD ~ the region identity} and the position of {TAIL ~ the tag} within the region 
of
Preferably , the coded data includes at least one tag , each tag being indicative of { HEAD ~ the region identity } and the position of { TAIL ~ the tag } within the region
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH