# type topo
# cell     3.693700     3.693700     1.537200    90.000000    90.000000    90.000000
8
  1 n      0.000000    1.346723    0.000000   0                             2/13      5/13      5/12 
  2 n      0.000000    2.346977    0.000000   0                             1/13      6/13      6/12 
  3 n      2.346977    0.000000    0.000000   0                             4/13      7/13      7/12 
  4 n      1.346723    0.000000    0.000000   0                             3/13      8/13      8/12 
  5 s      0.000000    0.706974    0.768600   1                             1/13      1/14       7/4      8/13 
  6 s      0.000000    2.986726    0.768600   1                             2/13      2/14       7/7      8/16 
  7 s      2.986726    0.000000    0.768600   1                             3/13      3/14      5/22      6/19 
  8 s      0.706974    0.000000    0.768600   1                             4/13      4/14      5/13      6/10