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

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

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

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

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

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