# type topo
# cell     2.000000     2.000000     6.928200    90.000000    90.000000    90.000000
12
  1 s      0.000000    1.500000    0.866025   0                             5/16      7/13     10/13      12/4 
  2 s      1.000000    0.500000    4.330125   0                             6/13      8/13      9/13     11/13 
  3 s      1.000000    1.500000    2.598075   0                             6/16      7/13      9/13     12/13 
  4 s      0.000000    0.500000    6.062175   0                             5/14      8/13     10/14      11/4 
  5 s      0.000000    0.000000    0.000000   1                             1/10      4/12     10/13     10/10 
  6 s      1.000000    0.000000    3.464100   1                             2/13      3/10      9/13      9/10 
  7 s      0.500000    1.500000    1.732050   1                             1/13      3/13     12/13      12/4 
  8 s      0.500000    0.500000    5.196150   1                             2/13      4/13     11/13      11/4 
  9 s      1.000000    1.000000    3.464100   1                             2/13      3/13      6/13      6/16 
 10 s      0.000000    1.000000    0.000000   1                             1/13      4/12      5/13      5/16 
 11 s      1.500000    0.500000    5.196150   1                             2/13      4/22      8/13      8/22 
 12 s      1.500000    1.500000    1.732050   1                             1/22      3/13      7/13      7/22