ID test
PO	A	C	G	U
0	0.207583033213	0.128051220488	0.536514605842	0.127851140456
1	0.0273109243697	0.918267306923	0.0272108843537	0.0272108843537
2	0.0	0.0	1.0	0.0
3	0.0	0.748399359744	0.251600640256	0.0
4	0.0	0.0	1.0	0.0
5	0.122048819528	0.122048819528	0.532112845138	0.223789515806