1 2 3 4 5
##fileformat=VCFv4.1 ##FORMAT=<ID=GT,Number=1,Type=String,Description="Genotype"> #CHROM POS ID REF ALT QUAL FILTER INFO FORMAT three four 1 100 . C A . . . GT 1/1 . 1 102 . C G . . . GT 0/1 .