()
| 5 | public static B getWbyB() {return new W();} |
| 6 | public static A getXbyA() {return new X();} |
| 7 | public static B getXbyB() {return new X();} |
| 8 | public static X getX() {return new X();} |
| 9 | public static A getYbyA() {return new Y();} |
| 10 | public static B getYbyB() {return new Y();} |