##fileformat=VCFv4.3
##contig=<ID=3>
##FORMAT=<ID=GT,Number=1,Type=String,Description="Genotype">
#CHROM	POS	ID	REF	ALT	QUAL	FILTER	INFO	FORMAT	NA1
3	50	.	A	T	0	PASS	.	GT:GT	0/1
3	60	.	T	C	0	PASS	.	GT	0/1
3	70	.	G	A	0	PASS	.	GT:GT	0/1:.
3	80	.	C	G	0	PASS	.	GT:GT	0/1:0/1