# type topo
# cell     1.842400     1.842400     5.135100    90.000000    90.000000   120.000000
16
  1 x12    0.000000    0.000000    0.000000   0                             5/13       5/4       6/1       6/4      7/13       7/1     11/12      11/9      12/9      12/0      13/0     13/12 
  2 x12    0.000000    0.000000    2.567550   0                              8/1      8/10      9/13      9/10      14/1      14/4     15/13      15/4     10/13      10/1     16/13      16/1 
  3 o      0.921292    0.531802    1.283775   1                            15/13     14/13      5/13      6/13     16/13      7/13 
  4 o     -0.000092    1.063763    3.851325   1                             8/13     11/13     12/13      9/13     10/13     13/13 
  5 n      0.921200    0.149026    0.361716   2                             1/13      1/22      3/13 
  6 n      1.252740    0.723270    0.361716   2                             1/25      1/22      3/13 
  7 n      0.589660    0.723270    0.361716   2                             1/13      1/25      3/13 
  8 n      0.000000    1.446539    2.929266   2                             2/25      2/16      4/13 
  9 n     -0.331540    0.872295    2.929266   2                             2/13      2/16      4/13 
 10 n      0.331540    0.872295    2.929266   2                             2/13      2/25      4/13 
 11 n     -0.331540    0.872295    4.773384   2                             1/14      1/17      4/13 
 12 n      0.000000    1.446539    4.773384   2                             1/17      1/26      4/13 
 13 n      0.331540    0.872295    4.773384   2                             1/26      1/14      4/13 
 14 n      1.252740    0.723270    2.205834   2                             2/25      2/22      3/13 
 15 n      0.921200    0.149026    2.205834   2                             2/13      2/22      3/13 
 16 n      0.589660    0.723270    2.205834   2                             2/13      2/25      3/13