ID test
PO	A	C	G	U
0	0.153615361536	0.153615361536	0.539153915392	0.153615361536
1	0.0	0.0	0.0	1.0
2	0.0	0.0	1.0	0.0
3	0.0	0.0	0.0	1.0
4	0.0	0.0	0.0	1.0
5	0.710871087109	0.0964096409641	0.0964096409641	0.0963096309631