4

Nb      0.012832755109719      0.200713406750863     -0.171419635241910
Nb      1.647208074828052      1.589423439016807     -0.042935755728110
Nb      1.775599808387315     -0.286782870693997      1.717364446883575
Nb     -0.213952216663259      1.703841316488826      1.292246231363758