chr1	0	10	fake.bigwig_1	1
chr1	10	20	fake.bigwig_0	0
chr1	20	30	fake.bigwig_1	1
chr1	30	40	fake.bigwig_0	0
chr1	40	50	fake.bigwig_1	1
chr1	50	60	fake.bigwig_0	0
chr1	60	70	fake.bigwig_1	1
chr1	70	200	fake.bigwig_0	0
chr1	200	1000	fake.bigwig_1	1
