# type topo
# cell     1.732100     1.732100     2.000000    90.000000    90.000000   120.000000
4
  1 p     -0.000087    1.000078    0.500000   0                             3/13      3/12       4/4      4/16      4/13 
  2 p      0.866137    0.499964    1.500000   0                             3/22      3/10      3/13      4/13      4/14 
  3 p     -0.000087    1.000078    1.500000   1                             1/13      1/14       2/4      2/16      2/13 
  4 p      0.866137    0.499964    0.500000   1                             1/22      1/10      1/13      2/13      2/12