You will be given a definition of a task first, then some input of the task.
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'.

 Person1:       Have you ever thought about having children , Kaitlyn ?  
 Person2:My husband and I have thought about it , but we ’ Ve decided not to have any . They are just too expensive . Besides , with all the news about global warming on the news lately , who knows what kind of world we ’ ll have in the future . What about you ?  
 Person1:        Well , I ’ Ve always wanted to have lots of children . Growing up with only one brother , I always felt a bit lonely . What do you think about families with only one child ?  
 Person2:For me , growing up in a big family always made me yearn for attention . I always wanted to be an only child so that I could always do what I wanted and so that I wouldn ’ t ever have to share .  
 Person1:        Don ’ t you think you would miss having other people around ?  
 Person2:No way ! I spent 20 years of my life with relatives around me 24-7 . you know , I don ’ t think I ’ Ve ever actually spent any time by myself in my parents ’ home . What do you think of the one-child policy in China ?  
 Person1:        If China didn ’ t have such a policy , can you imagine how many people there would be in China now ?  
 Person2:That ’ s true . But as a woman , I ’ m glad that even though I don ’ t want any children , I at least have a choice in how many children I have . On the other hand , I can ’ t imagine what China would be like if there weren ’ t a one-child policy !  
 Person1:        Do you think most families with many children envy or feel sorry for other families with only one child ?  
 Person2:I don ’ t know what other people think , but I , for one , envy only children ! 
Output:
formal