4

Nb      0.053322038648681     -0.115635265049338      0.231106884346713
Nb      1.498160217275525      1.512832755109719      0.200713406750863
Nb      1.328580364758090      0.147208074828052      1.589423439016807
Nb      0.275599808387315      1.213217129306003      1.717364446883575