“…In this new state, t and u are enabled with respective bindings b 3 , b 2 . Executing (u, b 2 ) will lead to the state {(p, [3,4]), (q, [1]), (r, [2,3] V. FROM PPOS TO COLOURED PETRI NETS Before defining the correspondence, we introduce some notation. Let O = (T, V, S, P ) be a PPO.…”