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'.
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Question:  Person1:       Could you explain the paper-making process to us - in very simple terms - please ?  
 Person2:Well , the pulp falls from a box onto the first part of the paper machine , which is basically a wire bed with large holes in it , where most of the water is extracted .  
 Person1:        So , is it actually paper at this stage ?  
 Person2:Yes , it is . But we need to take out more water . So it then passes through a series of rollers , where more water is squeezed out . After that it goes through the dryers , which are at a very high temperature . The paper is then coated . And finally it's wound onto reels and cut down into smaller lengths . 

Answer: formal


Question:  Person1:       Good morning . Is this where I can get a library card issued to me ?  
 Person2:No problem , we have a short form right here ; just hand it to me when you are done .  
 Person1:        I'm done .  
 Person2:That looks great , but I will also need your driver's license or other form of I . D .  
 Person1:        Sure , here it is .  
 Person2:Well , this looks nice . Do you know how to use it ?  
 Person1:        I am pretty sure how to use it , but can you remind me ?  
 Person2:Of course , just remember that all of the needed information is on the card .  
 Person1:        I see .  
 Person2:Well , I hope you have a wonderful time on your library visits ! 

Answer: informal


Question:  Person1:       Do you know something about Mount Tai ?  
 Person2:Yes . But not too much . It is considered as the head of five sacred mountains in China .  
 Person1:        Five sacred mountains ? Why people call them so ?  
 Person2:Because in history , the Chinese emperors used to climb onto these mountains and pay tribute to their ancestors and pray for good harvest and prosperity for the whole nation .  
 Person1:        Got it . Can we see any things left by them ?  
 Person2:Definitely . There are many wall paintings and inscriptions on the huge rocks on the mountain .  
 Person1:        I want to see them . How can I go there ?  
 Person2:That is easy . You can go directly to Tai'an city and buy a ticket to Mount Tai . 

Answer:
formal


