# type topo
# cell     1.872500     1.872500     0.867600    90.000000    90.000000    90.000000
4
  1 s      0.000000    0.000000    0.000000   0                             2/13      2/10      3/13       3/4 
  2 o      0.000000    0.936250    0.000000   1                             1/13      1/16      4/13       4/3       4/4      4/12 
  3 o      0.936250    0.000000    0.000000   1                             1/13      1/22      4/13      4/12      4/10       4/9 
  4 v      0.936250    0.936250    0.433800   2                             2/13      2/23      2/22      2/14      3/13      3/14      3/16      3/17