module DFFMS (L2,D,E,S,notifier);
input D,E,S,notifier;
output L2;

reg L2;

  L2 = 1'bx;

    begin
        else
    end
    begin
        L2 <= 1;
      else
        L2 <= 1'bx;
    end
  else

    begin
      if (S == 0)
      else if (S == 1)
        begin
            L2 = 1'bx;
        end
      else
    end

endmodule