insol5_2 :=[
Group([[[1, 0, 0, 0, 0], [0, 0, 0, 1, 0], [0, 1,
  0, 0, 0], [1, 0, 1, 0, 1], [0, 0, 0, 1, 1]]*Z(2),
[[1, 0, 0, 0, 0], [0, 1, 0, 0, 0], [0, 0,
  1, 0, 0], [1, 0, 0, 1, 0], [0, 0, 0, 0, 1]]*Z(2),
[[0, 1, 0, 0, 0], [0, 0, 1, 0, 0], [0, 0,
  0, 0, 1], [0, 0, 0, 1, 1], [1, 1, 0, 1, 1]]*Z(2)])];