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

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

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

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

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

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