2. (15 pts) Draw and annotate the parse tree for the input xyxyazxyxac. \begin{tabular}{|l|l|} \hline ABCCzD & Ax=Bv+CvDv \\ \hline BBB1x & B.v =B1v+1 \\ \hline By & B.v =0 \\ \hline CBa & CV=Bv \\ \hline Db & D.v =4 \\ \hline DCc & D.v = C.v* 2 \\ \hline \end{tabular}