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What relation is your daughter's grandfather's son's father to you ?

What relation is your cousin's aunt's niece's brother's sister's grandfather to you ?

What relation is your mother's brother's cousin's son's brother in law to you ?

What relation is your son's uncle's father's brother to you ?

What relation is your aunt's husband's son's grandfather to you ?

What relation is your husband's daughter's grandmother's brother to you ?