References/Notes/Attributions:
Column names:
name: STRING variable. Name of the item (e.g., fountain drink, burrito grilled beef, garden salad, etc.)
type: STRING variable. Type of food (e.g., salad, beverage, sandwich, etc.)
retailer: STRING variable. Name of the restaurant
size: STRING variable. S (small), L (large), N (normal, for items sold in one-size portions only)
price: NUMERIC variable. Price in US$
sales: NUMERIC variable. Number of items usually sold in one day