ID test
PO	A	C	G	U
0	0.0	0.0	1.0	0.0
1	0.258925892589	0.0	0.0	0.741074107411
2	0.680668066807	0.0	0.319331933193	0.0
3	0.0	0.0	0.0	1.0
4	0.0	0.0	1.0	0.0