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

What relation is your uncle's daughter's mother's niece's father in law to you ?

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

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

What relation is your daughter's grandfather's sister's niece's father in law to you ?

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