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

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

What relation is your son's uncle's aunt's husband to you ?

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

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

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