4

O       0.275441401243234     -0.248373670165286      0.281489134533454
O       1.552100008556937      1.468645008272133      0.261475170558833
O       1.507367785376969      0.005055816531102      1.004153822682636
O       0.178581111829789      1.583523721294892      1.295799629801681