4

Nb     -0.066994074176567     -0.279975180264136      0.225865614041473
Nb      1.496875263730290      1.226145294387826      0.021031448075832
Nb      1.126486564636002      0.182202042859078      1.393628405779479
Nb      0.456571490625088      1.527241716115138      1.275381499092299