a) Write the equivalent grammar corresponding to the following PDA transitions. b) Show the processing of the "bbba" input with instant transitions 8(qo, A, Z) = {{q, SZ)} 8(q, a, S) = {(q, AB)} 8(q, b , S) = {(q, BA)} 8(q, a, A) = {(q, A), (q, ^)} 8(q, b, B) = {(q, B), (q, A)} 8(q, A, Z)= {(qF, Z)}