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

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

What relation is your cousin's mother's nephew's daughter to you ?

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

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

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