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What relation is your brother's father's mother's grandson to you ?

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

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

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

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

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