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

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

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

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

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

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