prompt: What is the speed of light?
chosen: What is the speed of light?
chosen: user
chosen: The speed of light is 299,792,458 meters per second. It is a fundamental constant of the universe which is independent of the observer's moving or non-moving reference frame. It is the speed at which light propagates in a vacuum and is the fastest known form of communication in the universe. All known communications media -- including fiber optic cables and satellites -- are slower than light.
chosen: assistant
rejected: What is the speed of light?
rejected: user
rejected: assistant