O Si 
 1.0000000000000000
     4.5907618106774546   -0.3164739395597330   -0.3614970125018012
    -1.4943176526496933    4.5176072128856761   -0.0382810407684942
    -0.8140348340663373   -0.3469342878991829    6.2827612528445922
 O   Si 
   8   4
Selective dynamics
Cartesian
  2.1194200701144768  2.9173253317540664  1.6703859371398675   T   T   T
 -0.1468692625822553  2.3740266120188962  2.5791186617171635   T   T   T
 -1.0402901441152461  4.1677388458438971  4.1740867136597508   T   T   T
  5.2108282976674225  0.1213350520625422  0.8721090158694144   T   T   T
  1.1418857507369131  3.9775464501772415  5.4912471095511526   T   T   T
  1.8889352896552347  1.9021354347225681 -0.2948623572494479   T   T   T
 -0.3920222072782975  2.7937101445821542  0.2512343880080545   T   T   T
  2.3764593094393249  1.4146409566565836  3.7312792252119289   T   T   T
  2.8665701595951316  3.3722599572815963  0.1640194871960037   T   T   T
 -1.4578130956608344  2.9000463819247977  3.3141453103928336   T   T   T
  0.7322906915645069  2.0396951349211863  1.1621197123014568   T   T   T
  1.6425039964947930  0.5275701471236840  4.8562137474417941   T   T   T