# type topo
# cell     2.000000     2.000000     1.414200    90.000000    90.000000    90.000000
4
  1 o      0.500000    0.000000    0.000000   0                             2/13       2/4      3/13      3/12      4/10       4/9 
  2 o      1.500000    0.000000    0.000000   0                             1/13      1/22      3/22      3/21      4/19      4/18 
  3 o      0.000000    0.500000    0.707100   0                             1/13      1/14       2/4       2/5      4/13      4/10 
  4 o      0.000000    1.500000    0.707100   0                             1/16      1/17       2/7       2/8      3/13      3/16