对下述文本 Devise three example tasks of your own that fit into the MDP framework, identifying foreach its states, actions, and rewards. Make the three examples as different from each other as possible.The framework is abstract and flexible and can be applied in many different ways. Stretch its limits insome way in at least one of your examples. 统计其中出现的不同单词数，如有重复的单词，需给出其重复次数。