4

Nb     -0.011559350826601      0.032777132345812      0.218138927456429
Nb      1.267160691478363      1.694102356536350      0.225865614041473
Nb      1.793911941800705     -0.273854705612174      1.521031448075832
Nb     -0.222386442269693      1.682202042859078      1.393628405779479