#g2 f1 % homogenously decomposable bravais-group
5	% generator
 -1 0 0 -1 -1
  0 1 0 -1  0
  0 0 0 -1  0
  0 0 1 -1  0
  0 0 0  2  1
5	% generator
 0 0 0 1 0
 1 0 0 0 0
 0 1 0 0 0
 0 0 1 0 0
 0 0 0 0 1
5x0	% invariant form
 4
 0 4
 0 0 4
 0 0 0 4
 2 2 2 2 5
2^8  * 3^1  * 5^1   = 3840 % order of the group
