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

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

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

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

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

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