# type topo
# cell     4.633400     4.633400     1.000000    90.000000    90.000000   120.000000
18
  1 o      0.999888    0.000000    0.000000   0                            12/13     11/10      1/12      1/14       8/9      6/13 
  2 o     -0.499944    0.865928    0.000000   0                             10/4     12/13      2/12      2/14       4/4      9/12 
  3 o      1.816756    3.146714    0.000000   0                            11/22     10/16      3/12      3/14      7/12      5/13 
  4 o      3.316588    1.337547    0.333333   0                             2/22     15/13     14/13      4/12      4/14      9/22 
  5 o      1.816756    2.203476    0.333333   0                             3/13     13/13     15/13      5/12      5/14      7/13 
  6 o      1.816756    0.471619    0.333333   0                             1/13     13/13     14/13      6/12      6/14      8/10 
  7 o      0.999888    2.675095    0.666667   0                             3/14      5/13     18/13     17/13      7/14      7/12 
  8 o     -0.499944    3.541023    0.666667   0                             1/17      6/16     18/13     16/13      8/14      8/12 
  9 o     -0.499944    1.809167    0.666667   0                             2/14       4/4     17/13     16/13      9/14      9/12 
 10 o      3.633512    0.000000    0.000000   0                             2/22      3/10     10/12     10/14     14/13      18/9 
 11 o     -1.816756    3.146714    0.000000   0                             1/16       3/4     11/12     11/14     16/12      15/4 
 12 o      0.499944    0.865928    0.000000   0                             1/13      2/13     12/12     12/14     17/12     13/13 
 13 o      1.316812    1.337547    0.333333   0                             5/13      6/13     12/13     13/12     13/14     17/13 
 14 o      2.816644    0.471619    0.333333   0                             4/13      6/13     10/13     14/12     14/14     18/10 
 15 o      2.816644    2.203476    0.333333   0                             4/13      5/13     11/22     15/12     15/14     16/22 
 16 o     -0.999888    2.675095    0.666667   0                             8/13      9/13     11/14      15/4     16/14     16/12 
 17 o      0.499944    1.809167    0.666667   0                             7/13      9/13     12/14     13/13     17/14     17/12 
 18 o      0.499944    3.541023    0.666667   0                             7/13      8/13     10/17     14/16     18/14     18/12