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

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

What relation is your grandfather's wife's grandson's mother's niece's father to you ?

What relation is your grandmother's grandson's sister's aunt to you ?

What relation is your son's uncle's aunt's daughter's grandmother to you ?

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