Definition: You are given a conversation between two people. 'Person1:' and 'Person2:' are used to separate their respective dialogues. You are required to assign a label 'formal' if there is an absence of emotion and a presence of questions anywhere within the conversation. If such pattern is not found assign the label 'informal'.
Input: Person1: What ' s your city like ?
Person2:It ' s quite an interesting place to live . The best thing to do in my city is go shopping . There are several indoor and outdoor markets , department stores and shopping malls .
Person1: Is the traffic bad in the city centre ?
Person2:Not really . Cars are not permitted in several parts of city centre , especially in the main shopping areas . The public transport system is pretty good .
Person1: What about restaurants and entertainment ?
Person2:There are restaurants with food from all over the world . We have a small china-town near the city centre . There are many Indian , Thai , and Italian restaurants all over the city centre . There are many sports events in my city . We have several sports venues for football , rugby , and cricket-even ice-skating and ice hockey .
Person1: Is there a lot of nightlife in your city ?
Person2:There are several good clubs near the city centre . Many people in my city prefer something more ' cultural " , so we several theatres and venues for classical music concerts and operas .
Person1: It sounds like a really exciting city to live in .
Person2:It is . I hope you ' ll have time to come for a visit soon . You really should come during the summer , when the weather is better and there ' s more happening outdoors .
Output:
informal