O Si 
 1.0000000000000000
     4.3495879840801219    0.0000000000000000   -0.0000000000000000
    -0.0000000000000000    4.3495879840801219   -0.0000000000000000
     0.0000000000000000   -0.0000000000000000    4.3495879840801219
 O   Si 
   8   4
Selective dynamics
Cartesian
  1.0873969960200591  1.0873969960200591  1.0873969960200591   T   T   T
  3.2621909880599094  3.2621909880599094  1.0873969960200591   T   T   T
  3.2621909880599094  1.0873969960200591  3.2621909880599094   T   T   T
  1.0873969960200591  3.2621909880599094  3.2621909880599094   T   T   T
  1.0873969960200591  1.0873969960200591  3.2621909880599094   T   T   T
  3.2621909880599094  3.2621909880599094  3.2621909880599094   T   T   T
  1.0873969960200591  3.2621909880599094  1.0873969960200591   T   T   T
  3.2621909880599094  1.0873969960200591  1.0873969960200591   T   T   T
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
  0.0000000000000000  2.1747939920401183  2.1747939920401183   T   T   T
  2.1747939920401183 -0.0000000000000000  2.1747939920401183   T   T   T
  2.1747939920401183  2.1747939920401183 -0.0000000000000000   T   T   T