The WSP is a collection of overlapping applications for warehouse management, its Entity/Relationship diagram representing the entities involved in is shown in the figure 2. 1 n n 1 CUSTOMER Owns ITEM stored at PLACE Figure 2 All the functions (element processes) of the WSP system are listed in figure 3. Add customer - Delete place - Change customer data - Print customer item list - Delete customer - Print bill - Receive payment - Print stored items list - Deposit item - Query customers - Retrieve item - Query customer's items - Add place - Query places - Change place data - Query stored items Figure 3 (1), please draw the domain class diagram and (2), please draw the use case diagram for the system