[rules-users] Drools Planner: what if possible values of a PlanningVariable are dependent of another one?

Hi All, I have a PlanningEntity that has several planning variables, say A and B. Now, if A is O then B can be X or Y and when A is P then B can be Y or Z. I see two routes: * create a solution property that generates X, Y and Z as alternatives for B and rely on the score rules to dismiss improper values, depending on the value of A * create an entity property that only generates the possible values for B (i.e. X,Y for A=O and Y,Z for A=P) What is the best route? (Alternatively I do not use the constructionHeuristic and just start of my solution with a randomly (but correct) generated solution) Regards, Willem