3
  0.855066  -0.468879  -0.221391    0.19491
 -0.508405  -0.674207  -0.535696 -0.0316857
  0.101913   0.570612  -0.814872   0.719434
         0          0          0          1
 0.452465 -0.842453 -0.292486 -0.050129
-0.834146 -0.283814 -0.472917 -0.166509
 0.315399  0.457954 -0.831145  0.823491
        0         0         0         1
-0.0613424  -0.953898  -0.293796 -0.0646466
 -0.904708   0.177469  -0.387309   0.106477
  0.421593   0.242041  -0.873885   0.694236
         0          0          0          1
