Consider a city. It's full of signs and inscriptions, traffic lights, and other key interaction elements. Consider a store. It has shelves with stuff, again with inscriptions, price tags, etc.

"Pavement. Row of stores to the left. Joe's Grocery Store. Doors. Door handle. A shelf with bakery. A shelf with canned goods. A shelf with bottles. Coke bottle. Large Pepsi bottle. Apple juice bottle. Passageway. Checkout. Payment terminal. Door. Door handle. Pavement. ..."