Answer the questions below for each of the two petri nets of Figures 4 and 5:

1. Is it bounded? If you state that it is not, provide a sequence of markings along with a detailed explanation that proves your assertion.
2. Can a deadlock occur? If you state that it can, give the exact sequence of markings and transitions leading up to it.

NO t t2 Figure 4 - Third Petri Net ta 3 ts Figure 5 - Fourth Petri Net