{HEAD ~ The multi dimensional matrix symbol} 3, wherein {TAIL ~ a characteristic feature} comprises one of color, grey scale level, shape, and geometric pattern 
wherein
{ HEAD ~ The multi dimensional matrix symbol } 3 , wherein { TAIL ~ a characteristic feature } comprises one of color , grey scale level , shape , and geometric pattern
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH