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

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

What relation is your father's son's cousin's grandfather to you ?

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

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

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