prompt: When did Ford come out with the first Mustang car model?
chosen.role: system
chosen.content: A chat.
chosen.role: user
chosen.content: When did Ford come out with the first Mustang car model?
chosen.role: assistant
chosen.content: The very first Ford Mustang, the 1965 model, was unveiled on April 17, 1964 at the World's Fair. The car immediately became immensely popular, and Ford sold 681,000 of the 1965 models alone. By March of 1966, Ford had already built one million Mustangs. 
rejected.role: system
rejected.content: A chat.
rejected.role: user
rejected.content: When did Ford come out with the first Mustang car model?
rejected.role: assistant