Si 
 1.0000000000000000
     3.8974184341180274    0.0000000000000000   -0.0000000000000000
     0.0000000000000000    3.8974184341180274   -0.0000000000000000
    -0.0000000000000000   -0.0000000000000000    3.8974184341180274
 Si 
   4
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
  0.0000000000000000  1.9487092170590135  1.9487092170590135   T   T   T
  1.9487092170590135 -0.0000000000000000  1.9487092170590135   T   T   T
  1.9487092170590135  1.9487092170590135 -0.0000000000000000   T   T   T