# type topo
# cell     2.000000     2.000000     2.000000    90.000000    90.000000    90.000000
6
  1 b      0.500000    1.000000    0.000000   0                             2/13       2/4 
  2 b      1.500000    1.000000    0.000000   0                             1/13      1/22 
  3 b      0.000000    0.500000    1.000000   0                             4/13      4/10 
  4 b      0.000000    1.500000    1.000000   0                             3/13      3/16 
  5 b      1.000000    0.000000    0.500000   0                             6/13      6/12 
  6 b      1.000000    0.000000    1.500000   0                             5/13      5/14