Si 
 1.0000000000000000
     3.6610831738404275   -0.0000000000000000    0.0000000000000000
    -1.8305415869202137    3.1705910339135688   -0.0000000000000000
    -0.0000000000000000   -0.0000000000000000    5.9785237885704925
 Si 
   4
Selective dynamics
Cartesian
 -0.0000000183054165  2.1137273665110161  3.3629196311713421   T   T   T
  1.8305415686147979  1.0568636885398262  0.3736577368860942   T   T   T
  1.8305415686147979  1.0568636885398264  2.6156041573991531   T   T   T
 -0.0000000183054167  2.1137273665110166  5.6048660516843984   T   T   T