A shipping company has an updated database and information about processing and current location of each shipped item. To keep the database updated the company tracks the shipped item. Shipped items can be characterized by item id (unique), weight, dimensions, destination and delivery date. The company has multiple retail centers. Retail centers are characterized by CenterID (unique), type and address. The shipped items reach their destination by transportation route. Transportation routes are characterized by type (flights, trucks, vans etc.), priority, and RouteID (unique).

Create an ERD to capture information about the shipping company. Include identifiers and cardinality constraints