ID test
PO	A	C	G	U
0	0.0	0.0	0.0	1.0
1	0.283228322832	0.0	0.716771677168	0.0
2	0.0	0.0	0.0	1.0
3	0.657065706571	0.0	0.0	0.342934293429
4	0.0	0.0	0.0	1.0