O Si 
 1.0000000000000000
     5.5936414931027478    0.0000000000000000   -0.0000000000000000
     0.0000000000000000    5.5936414931027461   -0.0000000000000000
    -0.0000000000000000   -0.0000000000000001   11.5569131478849947
 O   Si 
  16   8
Selective dynamics
Cartesian
  0.0000000000000000 -0.0000000000000001 10.1874815824620129   T   T   T
  2.7968207465513815  2.7968207465513855  4.4090250085190563   T   T   T
  0.0000000000000000  2.7968207465513855  1.5197967215478689   T   T   T
  2.7968207465513815 -0.0000000000000000  7.2982532954904142   T   T   T
  2.7968207465513815 -0.0000000000000001 10.0371164263370591   T   T   T
 -0.0000000000000000  2.7968207465513855  4.2586598523946977   T   T   T
  2.7968207465513815  2.7968207465513855  7.1478881393660263   T   T   T
 -0.0000000000000000 -0.0000000000000000  1.3694315654234011   T   T   T
  1.5592515987288618  4.0343898943738843  0.0000000000000009   T   T   T
  1.2375691478225099  4.3560723452804337  5.7784565739425391   T   T   T
  1.5592515987288618  4.3560723452804337  2.8892282869712709   T   T   T
  1.2375691478225099  4.0343898943738843  8.6676848609138677   T   T   T
  4.3560723452804204  1.2375691478225246  5.7784565739425391   T   T   T
  4.0343898943738363  1.5592515987288691  0.0000000000000009   T   T   T
  4.3560723452804204  1.5592515987288691  8.6676848609138677   T   T   T
  4.0343898943738363  1.2375691478225246  2.8892282869712709   T   T   T
  4.7784191812701087  1.3984103732756927  1.4446141434856354   T   T   T
  3.6120430583840633  1.3984103732756932  7.2230707174282092   T   T   T
  4.1952311198270484  1.9815984347187652  4.3338424304569338   T   T   T
  4.1952311198270484  0.8152223118326488 10.1122990043994800   T   T   T
  1.9815984347187541  4.1952311198270733  7.2230707174282092   T   T   T
  0.8152223118326530  4.1952311198270733  1.4446141434856354   T   T   T
  1.3984103732756912  4.7784191812701238 10.1122990043994800   T   T   T
  1.3984103732756907  3.6120430583840770  4.3338424304569338   T   T   T