##fileformat=VCFv4.1
##FILTER=<ID=PASS,Description="All filters passed">
##FORMAT=<ID=GT,Number=1,Type=String,Description=Genotype>
##contig=<ID=20,length=63025520>
#CHROM	POS	ID	REF	ALT	QUAL	FILTER	INFO	FORMAT	SAMPLE1	SAMPLE2
20	20202020	.	C	G	.	.	.	GT	0/1	0/0
