prompt: Tell a joke about not wanting to have children.
chosen.role: system
chosen.content: A chat.
chosen.role: user
chosen.content: Tell a joke about not wanting to have children.
chosen.role: assistant
chosen.content: Friend: Do you want to have kids? 
  Me: No. 
  Friend: Why not? 
  Me: I can't stand all the crying. 
  Friend: They don't cry all the time. 
  Me: No, I meant me. 
rejected.role: system
rejected.content: A chat.
rejected.role: user
rejected.content: Tell a joke about not wanting to have children.
rejected.role: assistant