2. Design a McCulloch-Pitts network for the three-input minority function where Min(x1,x2,x3) equals 1 whenever only one or none of the inputs equal 1, in other words, Min(x1, x2, x3) = x1′x2′x3′ + x1′x2′x3′ + x1′x2x3′ + x1x2′x3′.