O Si 
 1.0000000000000000
     7.0552555819657448   -0.0000000000000000   -0.1562167287484154
    -0.0000000000000000    7.8914454062703410    0.0000000000000000
     0.8317044551631640    0.0000000000000000    5.4640426826384054
 O   Si 
  16   8
Selective dynamics
Cartesian
  1.9630562350895981  7.7418633704945394  2.9831639791853686   T   T   T
  5.9239038020393053  7.7418633704945403  2.3246619747046133   T   T   T
  5.4906840260724774  3.7961406673593721  2.9050556148111606   T   T   T
  2.3962760110564401  3.7961406673593725  2.4027703390788231   T   T   T
  2.6446327220453063  1.5554109256850983  1.2479341502435368   T   T   T
  5.2423273150835978  1.5554109256850983  4.0598918036464458   T   T   T
  6.1722605130281885  5.5011336288202699  1.1698257858693291   T   T   T
  1.7146995241007268  5.5011336288202699  4.1380001680206577   T   T   T
  1.4622602784658354  7.4789125410765038  0.2529679017516948   T   T   T
  6.4246997586630767  7.4789125410765038  5.0548580521382904   T   T   T
  4.9898880694487087  3.5331898379413289  0.1748595373774869   T   T   T
  2.8970719676802088  3.5331898379413289  5.1329664165124944   T   T   T
  4.1130278786877561  6.9430538832618804  4.0245117029933732   T   T   T
  3.7739321584411623  6.9430538832618804  1.2833142508966047   T   T   T
  7.6406556696706192  2.9973311801267211  3.9464033386191653   T   T   T
  0.2463043674582879  2.9973311801267211  1.3614226152708115   T   T   T
  2.4647920104940577 -0.0199784866559150  1.4488078259685953   T   T   T
  5.4221680266348571 -0.0199784866559150  3.8590181279213920   T   T   T
  5.9924198014769319  3.9257442164792522  1.3706994615943868   T   T   T
  1.8945402356519812  3.9257442164792522  3.9371264922956004   T   T   T
  5.3627494596052827  6.8888482391693184  1.0729548160327760   T   T   T
  2.5242105775236281  6.8888482391693202  4.2348711378572039   T   T   T
  1.8351216686224117  2.9431255360341551  1.1510631804069853   T   T   T
  6.0518383685065000  2.9431255360341542  4.1567627734829973   T   T   T