My survey question was clear so it's easy to answer. When I ask people who did my survey, I feel that they were happy when they eat pizza and they have fun when they answer.
When I know that deep-dish pizza is Chicago-style pizza. I really want to know how they make its. When I ask people about the ingredients that make pizza, the answer were various. Many people in Chicago like to eat pizza, Chicago obviously has a lot of pizza restaurants in every streets and corners.