# type topo
# cell     2.886400     2.886400     1.491100    90.000000    90.000000   120.000000
5
  1 n      0.000000    0.000000    0.000000   0                             2/13       3/1      4/10 
  2 n      0.000000    0.999878    0.000000   1                             1/13      5/12      5/13 
  3 n      0.577280    1.999757    0.000000   1                             1/25      5/13      5/12 
  4 n     -0.577280    1.999757    0.000000   1                             1/16      5/13      5/12 
  5 o     -0.000144    1.666547    0.745550   2                             2/14      2/13      3/13      3/14      4/13      4/14