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

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

What relation is your father's sister's husband's son's brother in law to you ?

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

What relation is your mother's sister's nephew's aunt's daughter's father to you ?

What relation is your brother's sister's cousin's mother to you ?