4

Nb     -0.208046300078891     -0.154676911783245      0.271069277120736
Nb      1.443390237435379      1.331501609512003      0.159645620171314
Nb      1.491291016437378     -0.083213489876162      1.331531310469614
Nb      0.303089087846240      1.696187499840327      1.463566468181869