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

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

What relation is your uncle's daughter's mother's brother in law to you ?

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

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

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