O Si 
 1.0000000000000000
     4.8819425509042498    0.0000000000000000    0.0000000000000000
     0.0000000000000000    6.5608508877048903    0.0000000000000000
     0.0000000000000000    0.0000000000000000    4.8984061021336069
 O   Si 
   8   4
Selective dynamics
Cartesian
  4.7207486862692312  2.8326158915130022  1.5635886837544999   T   T   T
  0.1611938646350192  3.7282349961918855  4.0127917348213025   T   T   T
  2.2797774108171045  0.4478095523394390  1.5635886837544999   T   T   T
  2.6021651400871466  6.1130413353654500  4.0127917348213025   T   T   T
  4.2510783098198441  5.3805355038415845  2.1086421524187964   T   T   T
  0.6308642410844059  1.1803153838633023  4.5578452034856065   T   T   T
  1.8101070343677204  4.4607408277157461  2.1086421524187964   T   T   T
  3.0718355165365301  2.1001100599891425  4.5578452034856065   T   T   T
  4.6005562771915622  2.4575884238844461  4.9000287776375266   T   T   T
  0.2813862737126894  4.1032624638204407  2.4508257265707236   T   T   T
  2.1595850017394347  0.8228370199679952  4.9000287776375266   T   T   T
  2.7223575491648146  5.7380138677368890  2.4508257265707236   T   T   T