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4. Design a rational agent for a robot that searches through a room until a wall outlet is discovered. The room is rectangular, and is assumed to contain no obstacles. An infrared sensor attached to the outlet indicates when the robot has reached this location. Once the outlet is found, the agent should plug itself into the wall (and stop searching for an outlet!) A photoelectric sensor on the front of the robot carriage indicates when the agent is facing a wall. The simple motor attached to the unit can move forward, or turn either 90 degrees to the left or right. a) Completely detail the environment for the problem above. b) Construct a mapping from percept to action (design the agent function). 5. Every year the Loebner Prize is awarded to the program that comes closest to passing a version of the Turing test. Research and report on the latest winner of the Loebner prize. What techniques does it use? How does it advance the state of the art of AI