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

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

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

What relation is your daughter's grandfather's son's uncle to you ?

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

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