You noticed a map of the entire supermarket, and saw that it had multiple different areas for you to check out while you were shopping, and your girlfriend pulled a shopping cart from outside while you were seeing where everything was. The electronics were North, the food was East, the furniture was South.
Luckily, you decided to go East to where the food was, knowing that you didn't see a cake at your girlfriends house, so the only thing that was on your mind was buying the stuff for it. As you both arrived at the food aisle, you discovered that the shelves were split into 5 colors to represent the types of food people eat, which would make sense seeing how it was part of the food chart. Of course, your task was to choose the aisle you decide to head down, so your girlfriend held onto the map.