O Si 
 1.0000000000000000
     4.9677260842973494    0.0000000000000000   -0.0000000000000000
     0.0000000000000000    4.9677260842973494    0.0000000000000000
     0.0000000000000000    0.0000000000000000    4.9677260842973494
 O   Si 
   8   4
Selective dynamics
Cartesian
  1.2419315210743374  1.2419315210743374  1.2419315210743374   T   T   T
  3.7257945632230105  3.7257945632230105  1.2419315210743374   T   T   T
  3.7257945632230105  1.2419315210743374  3.7257945632230105   T   T   T
  1.2419315210743374  3.7257945632230105  3.7257945632230105   T   T   T
  1.2419315210743374  1.2419315210743374  3.7257945632230105   T   T   T
  3.7257945632230105  3.7257945632230105  3.7257945632230105   T   T   T
  1.2419315210743374  3.7257945632230105  1.2419315210743374   T   T   T
  3.7257945632230105  1.2419315210743374  1.2419315210743374   T   T   T
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
  0.0000000000000000  2.4838630421486747  2.4838630421486747   T   T   T
  2.4838630421486747  0.0000000000000000  2.4838630421486747   T   T   T
  2.4838630421486747  2.4838630421486747  0.0000000000000000   T   T   T