We have a classification problem with four classes of input vectors. The four classes are:
Class 1: {[1, 1], [1, 2]}
Class 2: {[2, -1], [2, 0]}
Class 3: {[-1, 2], [-2, 1]}
Class 4: {[-1, -1], [-2, 2]}
Design a perceptron network to solve this problem.