Nb 
 1.0000000000000000
     4.3150020398586815    0.0000000000000000    0.0000000000000000
     0.0000000000000000    4.3150020398586815   -0.0000000000000000
    -0.0000000000000000   -0.0000000000000000    4.3150020398586815
 Nb 
   4
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
  0.0000000000000000  2.1575010199293407  2.1575010199293407   T   T   T
  2.1575010199293407 -0.0000000000000000  2.1575010199293407   T   T   T
  2.1575010199293407  2.1575010199293407 -0.0000000000000000   T   T   T