O Si 
 1.0000000000000000
     6.8694729296943198    0.0000000000000000   -0.0000000000000000
    -0.0000000000000000    6.8694729296943198   -0.0000000000000000
     0.0000000000000000   -0.0000000000000000    6.9756650348740301
 O   Si 
  16   8
Selective dynamics
Cartesian
  5.7039893209819486  4.6002200735595311  1.7439162587185071   T   T   T
  1.1654836087123746  2.2692528561347869  1.7439162587185071   T   T   T
  4.6002200735595311  1.1654836087123750  5.2317487761555252   T   T   T
  2.2692528561347869  5.7039893209819486  5.2317487761555244   T   T   T
 -0.0000000000000000  3.4347364648471586  6.7311142493411902   T   T   T
  3.4347364648471586 -0.0000000000000000  0.2445507855328390   T   T   T
  3.4347364648471586 -0.0000000000000000  3.2432817319041742   T   T   T
  0.0000000000000000  3.4347364648471586  3.7323833029698545   T   T   T
  4.6588030248310481  2.3891945913267154  0.5786344499029048   T   T   T
  2.2106699048632739  4.4802783383676044  0.5786344499029050   T   T   T
  2.3891945913267145  2.2106699048632734  6.3970305849711240   T   T   T
  4.4802783383676044  4.6588030248310481  6.3970305849711240   T   T   T
  1.2240665599838856  1.0455418735204454  4.0664669673399167   T   T   T
  5.6454063697104324  5.8239310561738744  4.0664669673399167   T   T   T
  5.8239310561738744  1.2240665599838856  2.9091980675341089   T   T   T
  1.0455418735204463  5.6454063697104324  2.9091980675341089   T   T   T
  5.4357892774796408  3.7825191707084094  0.3682386369207645   T   T   T
  1.4336836522146787  3.0869537589859091  0.3682386369207645   T   T   T
  3.7825191707084094  1.4336836522146792  6.6074263979532653   T   T   T
  3.0869537589859091  5.4357892774796408  6.6074263979532653   T   T   T
  2.0010528126324809  6.5216902238330690  3.8560711543577781   T   T   T
  4.8684201170618424  0.3477827058612508  3.8560711543577781   T   T   T
  0.3477827058612509  2.0010528126324809  3.1195938805162484   T   T   T
  6.5216902238330690  4.8684201170618424  3.1195938805162484   T   T   T