# type topo
# cell     1.414200     1.414200     2.828400    90.000000    90.000000    90.000000
5
  1 v      0.000000    0.000000    0.000000   0                             4/12       4/9      5/12       5/3      2/13      2/10      3/13       3/4 
  2 i      0.000000    0.707100    0.828438   1                             1/13      1/16      3/13      3/16       3/4       3/7      4/13 
  3 i      0.707100    0.000000    0.828438   1                             1/13      1/22      2/13      2/10      2/22      2/19      5/13 
  4 i      0.000000    0.707100    1.999962   1                             1/14      1/17      2/13      5/13       5/4       5/7      5/16 
  5 i      0.707100    0.000000    1.999962   1                             1/14      1/23      3/13      4/13      4/22      4/19      4/10