# type topo
# cell     2.637100     2.637100     2.430600    90.000000    90.000000   120.000000
8
  1 s      0.000000    0.000000    0.499974   0                             2/12      6/10       7/4      8/13 
  2 s      0.000000    0.000000    1.930626   0                             1/14      3/13      4/13       5/1 
  3 s      0.878945    0.000000    1.453742   1                             2/13      6/10      7/13      8/13 
  4 s     -0.439473    0.761189    1.453742   1                             2/13      6/13       7/4      8/13 
  5 s      0.879077    1.522607    1.453742   1                             2/25      6/22      7/16      8/13 
  6 s     -0.879077    1.522607    0.976858   1                             1/16      3/16      4/13       5/4 
  7 s      1.758155    0.000000    0.976858   1                             1/22      3/13      4/22      5/10 
  8 s      0.439473    0.761189    0.976858   1                             1/13      3/13      4/13      5/13