4

Pb      0.280474415860053     -0.296471462619276      0.224412309960132
Pb      1.496425420019439      1.753797262722739      0.093878138734658
Pb      1.363884938109836      0.039601498322578      1.535045928266389
Pb      0.222003298102708      1.597562119870267      1.677405872826443