{ Petri net generated by APT for net Net for exercise 5.1 } PLACE p1, p2, p3, p4, p5; MARKING p1 : 2; TRANSITION t1 CONSUME p1 : 2; PRODUCE p1 : 1, p2 : 1; TRANSITION t2 CONSUME p2 : 1, p4 : 1; PRODUCE p1 : 3; TRANSITION t3 CONSUME p2 : 1; PRODUCE p5 : 1; TRANSITION t4 CONSUME p5 : 1; PRODUCE p4 : 1, p2 : 2; TRANSITION t5 CONSUME p4 : 1, p3 : 3; PRODUCE p3 : 5;