text: <START_QUESTION> there is a man in jail. you want to visit him but you must be related to him. you tell the police officer, " okay, but you will figure this out. " here is the riddle: brothers and sisters, i have none. but this man's father is my father's son. can you figure out how he is related to him? <END_QUESTION>
  <ANSWER> he is the mans father <END_ANSWER><|endoftext|>