#family_ID	sample_ID	paternal_ID	maternal_ID	sex	affection
fam1	F7	0	0	1	1
fam1	F9	0	0	2	1
fam1	F8	F7	F9	2	2
fam1	F14	F7	F9	2	2
fam1	F15	F7	F9	1	2
fam2	F10	0	0	1	1
fam2	F11	F10	0	1	1
fam2	F16	F10	0	2	1