Describe all sets of rules that you can come up with for the following figure (same as Figure 3.22 of your textbook): supcity supstatus purchase_price deliv_period SUPNA O..M supname SUPPLIER PRODNR prod popo-prod prodname supaddress 1.1 SUPPLIES 0..N ON_ORDER po-sup suppo PRODUCT 0..N PO LINE 0..N PURCHASE ORDER prodtype 0..M prod popo-prod available quantity PONR podate quantity