1    18  Water Hexamer Cage Structure
2     1  O     -0.292774   -1.544171    0.112005     1     2     3
3     2  H      0.065744   -0.676721   -0.128105     2     1
4     3  H     -1.201688   -1.562200   -0.191799     2     1
5     4  O      1.203608    0.596026   -0.769486     1     5     6
6     5  H      2.030612    0.411802   -0.306699     2     4
7     6  H      1.351308    0.303715   -1.678812     2     4
8     7  O      2.099724   -0.629355   -3.217991     1     8     9
9     8  H      3.018812   -0.333793   -3.118157     2     7
10     9  H      1.906103   -0.598903   -4.157859     2     7
11    10  O      3.675539   -0.753097    0.056485     1    11    12
12    11  H      3.157665   -1.520968   -0.244082     2    10
13    12  H      4.117309   -1.036589    0.861261     2    10
14    13  O      2.028685   -2.570952   -1.075367     1    14    15
15    14  H      1.954732   -2.129021   -1.931867     2    13
16    15  H      1.171429   -2.435979   -0.644325     2    13
17    16  O      4.577803    0.198754   -2.383950     1    17    18
18    17  H      4.785104    1.135184   -2.344318     2    16
19    18  H      4.423765   -0.084944   -1.469883     2    16
20