3
  0.923947  -0.166955   0.344163   0.218137
-0.0893374   0.780659   0.618539   0.084497
 -0.371942  -0.602244   0.706373   0.911815
         0          0          0          1
   0.984971   0.0953438    0.144019    0.144805
  -0.172612     0.57277    0.801336   -0.132875
-0.00608742   -0.814152     0.58062     1.08176
          0           0           0           1
  0.630331   0.714557   0.303465 -0.0554295
 -0.693314   0.342267   0.634169  0.0589693
  0.349284  -0.610133   0.711153    1.01012
         0          0          0          1
