Reduce the following state tables to the minimum number of states:

5. Current State So Si S2 Next State Output, Z X=0 X=1 X=0 X=1 1 Si S2 1 0 SS S3 0 0 S3 1 1 Ss 0 1 S3 0 Si S2 1 0 S4 S4 S3 So 0 S4 Ss