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

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

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

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

What relation is your aunt's niece's uncle's daughter's father's brother to you ?

What relation is your father's daughter's aunt's brother to you ?