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What relation is your sister's father's wife's husband to you ?

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

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

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

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

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