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