final Map<String, Integer> requiredResources = new TreeMap<String, Integer>();
requiredResources.put("grain", 5);
final ProducerBehaviour behaviour = new ProducerBehaviour("jenny_mill_flour",
"mill", "flour", requiredResources, 2 * 60);
new SellerAdder().addSeller(npc, new SeedSellerBehaviour());
new ProducerAdder().addProducer(npc, behaviour,"Greetings! I am Jenny, the local miller. If you bring me some #grain, I can #mill it into flour for you.");
npc.setPosition(19, 39);
npc.setDescription("You see Jenny. She is the local miller.");
npc.setDirection(Direction.DOWN);
npc.setEntityClass("woman_003_npc");