4

Pb      0.221361532113787      0.059565780058996      0.198217275184119
Pb      1.367395268199472      1.712208575089334      0.298420767848286
Pb      1.425633585264628      0.106456857741487      1.485123847783449
Pb      0.029920915918941      1.731801608359433      1.559903123621894