# type topo
# cell     2.000000     2.000000     1.000000    90.000000    90.000000   120.000000
3
  1 o      1.000000    0.000000    0.000000   0                             3/13      3/10      1/14      1/12      2/22      2/10 
  2 o     -0.500000    0.866025    0.000000   0                              1/4      1/16      2/12      2/14      3/13       3/4 
  3 o      0.500000    0.866025    0.000000   0                             1/13      1/16      2/13      2/22      3/12      3/14