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What relation is your sister's aunt's nephew's grandfather to you ?

What relation is your sister's mother's brother's daughter's brother in law to you ?

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

What relation is your aunt's sister's cousin's brother in law to you ?

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

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