#CHROM POS REF ALT SAMPLE0(2) SAMPLE1(2) SAMPLE2(2) SAMPLE3(1) SAMPLE4(1) 11 0 A C 1 1 1 1 1 11 100000 A G 2 1 0 0 0 11 200000 A T 0 1 1 1 1 11 300000 C A 2 -1 1 0 0 11 400000 G A 0 1 1 1 1 11 500000 T A 2 2 1 -1 1 11 600000 G T 0 0 1 -1 -1