3
  0.989201  -0.122267 -0.0808295  0.0955434
  0.144635   0.903579    0.40327   0.160525
 0.0237294  -0.410605   0.911505    1.05167
         0          0          0          1
  0.916077    0.39431 -0.0729538 -0.0113362
 -0.336115   0.854251   0.396589  -0.102733
    0.2187  -0.338785   0.915093    1.14523
         0          0          0          1
   0.56844   0.820274 -0.0634587  -0.201134
 -0.744513   0.545693   0.384603   0.106111
  0.350109  -0.171378   0.920899    1.04509
         0          0          0          1
