4

Nb      0.067398512519345      0.044065582614781     -0.036493803535696
Nb      1.802490851917149      1.748017823954941      0.038250577691610
Nb      1.759620789790252     -0.010563353072038      1.721140387011251
Nb     -0.010526659370983      1.722064204873799      1.692604007586068