O Si 
 1.0000000000000000
     7.9546278557559518   -0.0000000000000000   -0.5687932497644524
    -0.0000000000000000    5.0779368305486230    0.0000000000000000
    -8.5087621990226090    0.0000000000000000    5.9197126824686199
 O   Si 
   8   4
Selective dynamics
Cartesian
 -0.0000000000000000  4.6379138023316031  0.0000000000000000   T   T   T
 -4.2543810995113009  2.2391009631767127  2.9598563412343095   T   T   T
 -6.3585045331142078  0.1746280938153543  4.5115128477672153   T   T   T
  5.8043701898475568  0.1746280938153543  0.8394065849369450   T   T   T
 -2.1974026749549638  1.4556143303824893  4.5435848776471524   T   T   T
  1.6432683316883099  1.4556143303824893  0.8073345550570102   T   T   T
  2.3848938429766622  3.9999982500543969  0.8707947021666810   T   T   T
 -2.9390281862433123  3.9999982500544022  4.4801247305374829   T   T   T
 -2.0969038033406253  0.0296556302862152  5.3048785679832706   T   T   T
  1.5427694600739754  0.0296556302862152  0.0460408647208972   T   T   T
  2.5251639270119273  2.5648047019608828  1.4308906673847230   T   T   T
 -3.0792982702785769  2.5648047019608828  3.9200287653194374   T   T   T