The document contains a series of groups of three items each. For each group, the reader is asked to identify what the three items have in common. The commonalities identified include types of transportation, rooms in a house, types of weather, types of vegetables, types of cookies, types of sports, animals that have horns, types of baby animals, types of clothes, types of U.S. states, things that have legs, types of desserts, days of the week, types of shapes, types of colors, family members/relatives, types of birds, things that live in oceans, types of toys, things in your kitchen, clothes you wear in the summer, types of jewelry, types of musical instruments