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

What relation is your brother's aunt's nephew's father in law to you ?

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

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

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

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