General Computer Accessory Company: In General Computer Accessory Company $($GCAC$),$ each product $($described by product number $($primary key $($PK$)),$ description, and cost$)$ comprises at least one component and can comprise many components $($described by component number $($PK$),$ description, and unit of measure$),$ and each component is used to make zero to many products. GCAC keeps track of the quantities of products and components in the manufacturing process. In addition, a component can be used to make zero to many other components and a component can consist of zero to many other components. GCAC also keeps track of how many components go into making some other components.

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