# type topo
# cell     2.548400     2.548400     1.672300    90.000000    90.000000   120.000000
8
  1 n      0.000000    0.000000    0.418075   0                             3/13      4/13       5/1 
  2 n      0.000000    0.000000    1.254225   0                             7/10       6/4      8/13 
  3 n      0.999992    0.000000    0.418075   1                             1/13      6/13      6/12 
  4 n     -0.499996    0.866019    0.418075   1                             1/13      7/12      7/13 
  5 n      0.774204    1.340961    0.418075   1                             1/25      8/13      8/12 
  6 n      1.548408    0.000000    1.254225   1                             2/22      3/13      3/14 
  7 n     -0.774204    1.340961    1.254225   1                             2/16      4/14      4/13 
  8 n      0.499996    0.866019    1.254225   1                             2/13      5/13      5/14