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:       Did you move into your new apartment ? 
 Person2:Yes , but I ’ m afraid it ’ s still a mess . I haven ’ t put anything away yet . 
 Person1:        Don ’ t worry . It ’ ll probably take you about three weeks to get everything organized . 
 Person2:Don ’ t say that . It looks like a dump now . I can ’ t stand it . 
 Person1:        Have you taken a walk around your neighborhood yet ? 
 Person2:Unfortunately , yes . 
 Person1:        What do you mean by that ? 
 Person2:I took a long walk through the neighborhood this morning on my way to the train station . It took me 20 minutes . 
 Person1:        Yes , but you only pay 800 dollars a month . Emm , it ’ s hard to decide which is better , shorter commuting time or lower rent . 
 Person2:I thought paying a lower rent would be better , but now I ’ m not sure . 
 Person1:        Is there a supermarket nearby ? 
 Person2:Yes , if you consider 7-11 is a supermarket . 
 Person1:        Sounds like you better buy a bicycle . 
 Person2:That ’ s right , or I ’ m going to spend a lot of time walking . 

formal