Sentence:  Generally, operations are primarily self-service if food or beverages are ordered or selected by a customer by a customer at one location and carried by the customer from such location to the customer's seat. For example, cafeteria lines, buffets, and <WSD>smorgasbords</WSD> are primarily self-service. 
Meaning of the word marked with <WSD> tags:  A Swedish-style buffet comprising a variety of cold sandwiches and other dishes;  any buffet with a wide selection of dishes.