Design a state graph and state table for a Moore sequential circuit that has two inputs (X1 and X2) and one output (Z). The output begins at 0 and becomes 1 when X1 = 1 and X2 = 1, either concurrently or one after the other (in either order). The output returns to 0 when X1 = X2 = 0. Below is a sample input and output sequence:
X1 0 1 0 0 1 0 0 0 1 1 0 1 1 0
X2 0 0 1 1 0 0 1 1 0 0 0 1 0 0
Z 0 0 1 1 1 0 0 0 1 1 0 1 1 0