Imagine that you are the database administrator for a military transportation system. You have a table named cargo in your database that contains information on the various cargo holds available on each outbound airplane. Each row in the table represents a single shipment and lists the contents of that shipment and the flight identification number. Only one shipment per hold is allowed. The flight identification number may be cross-referenced with other tables to determine the origin, destination, flight time, and similar data. The cargo table appears as follows: Flight ID Cargo Hold Contents Classification 1254 A Boots Unclassified 1254 B Guns Unclassified 1254 C Atomic bomb Top Secret 1254 D Butter Unclassified Suppose that two roles are defined: Role 1 has full access rights to the cargo table. Role2 has full access rights only to rows of the table in which the Classification field has the value Unclassified. Describe a scenario in which a user assigned to role 2 uses one or more queries to determine that there is a classified shipment on board the aircraft.