ii$)$ Consider the following schedules :

$S1$: $r1(w),w1(x),r1(y),w1(y),r1(x),w2(x),c2,c1$

$S2$: $r1(x),w1(x),r2(x),r1(y),w2(x),w1(y),c1,c2$

Which schedule is recoverable explain in steps and graphs if needed? $(6$ marks$)$