O Si 
 1.0000000000000000
     5.0339020332944138    0.0000000000000000    0.0000000000000000
     0.0000000000000000    6.8983716992314168    0.0000000000000000
     0.0000000000000000    0.0000000000000000    5.1325773211921808
 O   Si 
   8   4
Selective dynamics
Cartesian
  4.9568612488973791  3.1605060696219400  1.4948696122410252   T   T   T
  0.0770407843970163  3.7378656296094164  4.0611582728371678   T   T   T
  2.4399102322501554  0.2886797799937497  1.4948696122410252   T   T   T
  2.5939918010442353  6.6096919192375863  4.0611582728371678   T   T   T
  4.3734629622485555  5.5780705527391294  2.3544683527827197   T   T   T
  0.6604390710458284  1.3203011464921883  4.9207570133787790   T   T   T
  1.8565119456013595  4.7694869961078732  2.3544683527827197   T   T   T
  3.1773900876930425  2.1288847031234770  4.9207570133787790   T   T   T
  4.7107154349532898  2.5956890628136304  5.1327236215195589   T   T   T
  0.3231865983411061  4.3026826364177042  2.5664349609234249   T   T   T
  2.1937644183060643  0.8534967868020341  5.1327236215195589   T   T   T
  2.8401376149883264  6.0448749124293180  2.5664349609234249   T   T   T