Question 17 Needs Grading Consider the following two schedules, both composed from transactions T1, T2, T3, and T4. The operations / and ware read and write, respectively. The subscript indicates to which transaction the operation belongs. . The item in parentheses indicates the database item being operated upon. For each of the two schedules below, S. and S,: Draw the conflict precedence graph on your hardcopy answer sheet. Then notate the following: o If the schedule is serializable, write ALL equivalent serial schedules o If the schedule is NOT serializable, write ALL cycles (a) 31 = 100, w1 0(), r4(), 12(0), w20(), ry(), wa(), re(), my (W), w1 (W), w2(W), r4(Z), w4(Z), 3(Z) (b) S2 = 14(), /100, ry(X), w1(), w2(0), ry(), w2(), 3(), mi(W), w1(W), w2(W), 13(Z), r4(Z), w4(Z)