1	chr1	1000	2000	0.1	A
1	chr1	1100	1400	1	B
1	chr1	1150	1350	1	C
1	chr1	1200	1300	1	D
2	chr1	1000	2000	0.1	A
2	chr1	1600	1900	1	E
2	chr1	1650	1850	1	F
2	chr1	1700	1800	1	G
3	chr2	1000	1100	1	A
3	chr2	1010	1110	2	B
3	chr2	1020	1120	1	C
3	chr2	1030	1130	1	D
3	chr2	1040	1140	1	E
3	chr2	1050	1150	1	F
3	chr2	1060	1160	1	G
4	chr3	1000	2000	1	A
4	chr3	1100	1900	1	B
4	chr3	1200	1800	1	C
4	chr3	1300	1700	1	D
4	chr3	1400	1600	1	E
4	chr3	1450	1550	1	F
4	chr3	1500	1600	1	G