9. XOR Gate Using Basic Gates

How do you plan to solve it?

// ============================================================
// Basic Gates (given)
// ============================================================
module and_gate(input a, b, output y);
    assign y = a & b;
endmodule

module or_gate(input a, b, output y);
     assign y = a | b;
endmodule

module not_gate(input a, output y);
    assign y = ~a;
endmodule

// ============================================================
// XOR Gate
// ============================================================
module xor_gate (
    input  a, b,
    output y
);
    wire w1,w2;
    not_gate not_gate1(.a(a),.y(nota));
    not_gate not_gate2(.a(b),.y(notb));
    and_gate and_gate1(.a(a),.b(notb),.y(andout1));
    and_gate and_gate2(.a(b),.b(nota),.y(andout2));
    or_gate or_gate1(.a(andout1),.b(andout2),.y(y)); 
    

endmodule