Individualid	Familyid	Gender	Mother	Father
m100	cs_ms_001	m	.	.
m101	cs_ms_001	f	.	.
m108	cs_ms_001	m	m101	m100
m103	cs_ms_001	m	m101	m100
m105	cs_ms_001	m	.	.
m104	cs_ms_001	f	m101	m100
m106	cs_ms_001	f	.	.
m107	cs_ms_001	m	m104	m105
m109	cs_ms_001	m	m106	m103
m102	cs_ms_001	f	m104	m105
m110	cs_ms_001	f	m102	m103
m111	cs_ms_001	m	m102	m103