Thus, within a character, each bar 16 may consist of 1, 2, 3 or 4 contiguous dark modules, and each space 18 may consist of 1, 2, 3 or 4 contiguous white modules, so long as {HEAD ~ the total width} of {TAIL ~ the character} is 7 modules 
of
Thus , within a character , each bar 16 may consist of 1 , 2 , 3 or 4 contiguous dark modules , and each space 18 may consist of 1 , 2 , 3 or 4 contiguous white modules , so long as { HEAD ~ the total width } of { TAIL ~ the character } is 7 modules
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH