<human>:  How does the Peanut Butter Robot work?
<bot>: The Peanut Butter Robot is a robot that can spread peanut butter on bread. The robot uses a mechanical arm to apply peanut butter to a slice of bread. The robot is controlled by a computer, which controls the mechanical arm and the speed at which the arm moves. The robot can also detect the presence of the peanut butter and automatically stop spreading the peanut butter if the peanut butter is not present.