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

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

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

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

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

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