Task $3$: A sequential circuit and its state diagram

$[20]$

A sequential circuit shown below has one input, X$,$ and one output, Z$,$ and two D$-$Flip$-$Flops, A and B$,$

and a clock input.

since i cannot provide an image i can explain the sequantial circuit,

so we have an input X which connects to a $($not$)$ gate, lets call this $($C$),($C$)$ has one output which connects to a $($nand$)$ gate, lets call this $($D$),$ there are another two inputs from $($D$)$ one connects to a $($nand$)$ gate as one of the inputs, lets call that $($nand$)$ gate $($E$)$ and the other input from $($D$)$ connects to another $($nand$)$ gate as an input, lets call that $($nand$)$ gate $($F$),($E$)$ has two inputs, one connects to $($F$)$ as an input and the other connects to a $($or$)$ gate which is the output of the whole circuit and this is represented by $($Z$),$ the outputs of $($D$),($E$)$ and $($F$)$ all connect to another $($nand$)$ gate as the inputs, lets call this $($nand$)$ gate $($G$),$ now $($G$)$s output connects to a D flip$-$ flop which is represented by $($A$)$ then $($A$)$ is connected to another D flip$-$flop represented by $($B$),$ a clock is also connected from $($A$)$ to $($B$),$ now $($F$)$ other input connects inbetween the two D flip$-$flops, $($A$)$ and $($B$).$ finally $($B$)$ connects to $($D$)$ as an input, $($B$)$ also connects to one of the inputs of $($Z$)$ and $($B$)$ also connects to one of the inputs of $($E$).$

now with that description,

$($a$)$ Give the state table for this sequential circuit.

$($b$)$ Draw the state diagram for this sequential circuit.