It tells whether the air conditioning unit is turned on or not based on values of four variables : temperature(T),humidity (H), the time of the day (D) and the day of the week. Based on following requirments
(a) The temperature exceeds 78oF, and the time of the day is between 8AM to 5PM. (b) The humidity exceeds 85%, the temperature exceeds 78oF, and the time of the day is between 8AM to 5PM. (c) The humidity exceeds 85%, the temperature exceeds 78oF, and it is a weekend. (d) It is Saturday or Sunday and humidity exceeds 85%.