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:       Are there any interesting articles in today ’ s newspapers ? 
 Person2:The headlines are all about the presidential election in the united states . Few other stories made the front pages . 
 Person1:        Is there anything of interest to us in the business sections ? 
 Person2:There ’ s an interesting feature article in the chronicle about doing business in china and the daily news has printed a report about the special economic zone near pairs . We have a subsidiary company l 
 Person1:        Are the reports favorable ? 
 Person2:Generally , the reporters take positive lines . They do point out a few problems that we need to be aware of , but there ’ s nothing worrying in the reports . In the classifieds , one of our competitors is a 
 Person1:        That ’ s interesting . They must be thinking of moving into that market . Are there any interesting editorials ? 
 Person2:Not really . They all seem to focus on the election . There have been several letters printed in the chronicle regarding that controversial article on drugs that they printed last week . 
 Person1:        I ’ m not surprised . That article certainly added fuel to the debate . Ok . Thanks . Can you leave two articles and the advertisements with me ? I ’ d like to read them . 
 Person2:Sure . There you are . 

informal