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

What relation is your wife's son's uncle's brother to you ?

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

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

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

What relation is your grandmother's grandson's sister's brother in law to you ?