##fileformat=VCFv4.3
##INFO=<ID=ISTR,Number=1,Type=String,Description="string">
##FORMAT=<ID=FSTR,Number=1,Type=String,Description="string">
##contig=<ID=chr1>
##reference=ref.fa
#CHROM	POS	ID	REF	ALT	QUAL	FILTER	INFO	FORMAT	smpl
chr1	101	.	C	G	.	.	.	.	.
