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

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

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

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

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

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