-- attributes.txt

The INVENTORY entity has the following attributes:
	PRODUCT_ID
	STORE_NUMBER
	QUANTITY_ON_HAND
	QUANTITY_ON_ORDER

The INVENTORY table is a linking table to support the many-to-many relationship between the STORE and PRODUCT tables:
- STORE is 1-to-many with INVENTORY, linked by STORE_NUMBER
- PRODUCT is 1-to-many with INVENTORY, linked by PRODUCT_ID
- STORE_NUMBER and PRODUCT_ID are foreign keys in INVENTORY