O Si 
 1.0000000000000000
     4.4061245186845195    0.0000000000000000    0.0000000000000000
     0.0000000000000000    4.4061245186845195   -0.0000000000000000
     0.0000000000000000   -0.0000000000000000    4.4061245186845195
 O   Si 
   8   4
Selective dynamics
Cartesian
  1.1015311296711299  1.1015311296711299  1.1015311296711299   T   T   T
  3.3045933890133905  3.3045933890133905  1.1015311296711299   T   T   T
  3.3045933890133905  1.1015311296711299  3.3045933890133905   T   T   T
  1.1015311296711299  3.3045933890133905  3.3045933890133905   T   T   T
  1.1015311296711299  1.1015311296711299  3.3045933890133905   T   T   T
  3.3045933890133905  3.3045933890133905  3.3045933890133905   T   T   T
  1.1015311296711299  3.3045933890133905  1.1015311296711299   T   T   T
  3.3045933890133905  1.1015311296711299  1.1015311296711299   T   T   T
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
  0.0000000000000000  2.2030622593422597  2.2030622593422597   T   T   T
  2.2030622593422597 -0.0000000000000000  2.2030622593422597   T   T   T
  2.2030622593422597  2.2030622593422597 -0.0000000000000000   T   T   T