class Launcher {

    public static void main(String[] args) {<FILL_FUNCTION_BODY>}
}


        // create facts
        Facts facts = new Facts();

        // create rules
        Rules rules = new Rules();
        rules.register(new HelloWorldRule());

        // create a rules engine and fire rules on known facts
        RulesEngine rulesEngine = new DefaultRulesEngine();
        rulesEngine.fire(rules, facts);

    
<no_super_class>