[{'role': 'USR', 'utterance': "There's a lot of traffic on the street. Is this the shopping district?"}
 {'role': 'SYS', 'utterance': 'Yes, it is. There are a lot of stores, office buildings, and theatres near here.'}
 {'role': 'USR', 'utterance': 'What is the largest building on the left?'}
 {'role': 'SYS', 'utterance': "That's a department store. It sells clothing, furniture, food-almost everything."}
 {'role': 'USR', 'utterance': "Do you buy everything in the same store? That's very handy, isn't it? It saves a lot of time. I need some clothes."}
 {'role': 'SYS', 'utterance': "There's a men's clothing store next to the bank building on the right. There are also some good stores on Lincoln Street."}
 {'role': 'USR', 'utterance': "That's a beautiful theatre on the corner. What do all the signs in front of it mean?"}]
{'role': 'SYS', 'utterance': "There's a new play there tonight. The building next to the theatre is a hotel."}