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

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

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

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

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

What relation is your aunt's son's sister's daughter in law to you ?