Si 
 1.0000000000000000
    15.4951829788611359   -0.0000000000000001    0.0000000000000000
    -7.7475914894305680   13.4192220959819810    0.0000000000000000
    -0.0000000000000000    0.0000000000000000   28.9489203393184553
 Si 
   4
Selective dynamics
Cartesian
 -0.0000000774759433  8.9461481087187220 16.7116902545035444   T   T   T
  7.7475914119546694  4.4730740767247292  2.2372300848443403   T   T   T
  7.7475914119546694  4.4730740767247292 12.2372300848149003   T   T   T
 -0.0000000774759442  8.9461481087187220 26.7116902544740995   T   T   T