$($code needs to be in ada$)$Rather implement a single package$/$class using inheritance to allow multiple data types$/$objects in a heterogeneous list.$$ Use this package$/$class to implement a doubly linked list and process all $$B$$ Option transactions placing the cars and planes in a single list $($container$).$ Hint: Car and Plane should inherit from a single ancestor.$$ The links in the following diagram will actually connect ancestor nodes.$$

$$ type InventoryItem is record

$$ itemName: ItemType; unitPrice: Float; inStock: Integer;

$$ end InventoryItem;$$

$$

IF Ford $80722\mathrm{.}364$

IF $$Ford $354622$

IR Boeing $1567342\mathrm{.}783$

IR Cessna $569574$

PF

PL

D Ford

IR GMC $67988\mathrm{.}992$

IR$$ RAM $88572\mathrm{.}463$

$$

IF Chevy $53476\mathrm{.}343$

PN

PF