QUESTION 3 How do you model the following situation with a UML class diagram: There are multiple different bird species, e.g. blackbird, thrush and starling. 1 (abstract) Bird Starting Blackbird Thrush 2 abstract) Bird Starling Blackbird Thrush 3 Bird Starling Blackbird Thrush Both b and QUESTION 4 How do you model the following situation with a UML class diagram: An order is made with exactly one waiter, one waiter handles multiple orders. 1 Order Waiter 2 Order Wailer 3 Order Waiter 4 Order Waiter