Si 
 1.0000000000000000
     6.6476513795573071   -0.0000000000000001   -0.0000000000000000
    -3.3238256897786536    5.7570349701992978   -0.0000000000000000
    -0.0000000000000000   -0.0000000000000000   23.5286676817365290
 Si 
   4
Selective dynamics
Cartesian
 -0.0000000332388391  3.8380233326563080 14.6647767295838261   T   T   T
  3.3238256565402073  1.9190116759232145  2.9004428887155327   T   T   T
  3.3238256565402073  1.9190116759232150  8.8638909521528362   T   T   T
 -0.0000000332388395  3.8380233326563089 20.6282247930210545   T   T   T