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

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

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

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

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

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