}
});
// player says room number
linda.addMatching(ConversationStates.QUESTION_1,
// match for all numbers as trigger expression
ExpressionType.NUMERAL, new JokerExprMatcher(),
new TextHasNumberCondition(1, 15),
ConversationStates.IDLE, null,
new ChatAction() {
public void fire(final Player player, final Sentence sentence, final EventRaiser npc) {