##fileformat=VCFv4.2
##FORMAT=<ID=GT,Number=1,Type=String,Description="Genotype">
##contig=<ID=1,length=248956422>
#CHROM	POS	ID	REF	ALT	QUAL	FILTER	INFO	FORMAT	0	1	2	3
1	1001	.	A	C,G,T	.	.	.	GT	0/0	1/1	2/2	./.
1	1002	.	A	C,G,T	.	.	.	GT	./0	./1	2/2	./.
1	1003	.	A	C,G,T	.	.	.	GT	0/.	1/1	./2	3/3
