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

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

What relation is your brother's sister's cousin's father in law to you ?

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

What relation is your aunt's nephew's father in law's daughter to you ?

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