The Why Be Normal Elevator Company (WBNEC) needs a display for its new 'transvator' . The transvator is designed to move both up and down and sideways so it can deliver you to your office door. The display needs to tell you what direction you are about to move. The problem is WBNEC insists that you use a standard 7-Segment display. (Hint: You can tilt the display.) Design a decoder that will display up-down-left-right. Create a truth table, a sketch of the display, reduced logic equations, and reduced logic circuits.