3
  0.923423  -0.226872  -0.309547 -0.0375937
  0.370547   0.737053   0.565198   0.309072
 0.0999245  -0.636618   0.764678   0.952371
         0          0          0          1
  0.913088   0.262619  -0.311932  -0.108741
-0.0482191   0.829159   0.556929  0.0543416
  0.404901  -0.493484   0.769759    1.10263
         0          0          0          1
  0.60915  0.734405 -0.299309 -0.314229
-0.511736  0.652323  0.559107  0.182818
 0.605857 -0.187413  0.773184  0.913933
        0         0         0         1
