sample-id	gender	type	kind-of-sample	tissue	parents	offspring
S1	Male	Father	Germline	Blood	N/A	S3|S4
S2	Female	Mother	Germline	Blood	N/A	S3|S4
S3	Male	Patient	Somatic	Blood	S1|S2	N/A
S4	Male	Patient	Germline	Skin	S1|S2	N/A
