TASK 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'.
PROBLEM: Person1: Good afternoon . I believe that this house is for sale .
Person2:That's right .
Person1: May I have a look at it please ?
Person2:Yes , of course . Come in .
Person1: How long have you lived here ?
Person2:I have lived here for twenty years .
Person1: Twenty years ! That's a long time .
Person2:Yes , I have been here since 1976 .
Person1: Then why do you want to sell it ?
Person2:Because I have just retired . I want to buy a small house in the country .
Person1: How much does this house cost ?
Person2:6850 pound .
Person1: That's a lot of money !
Person2:It's worth every penny of it .
Person1: Well , I like the house , but I can't decide yet . My wife must see it first .
Person2:Women always have the last word .

SOLUTION: informal

PROBLEM: Person1: Finally the class is over . Be quick . Ben must have been waiting for long .
Person2:Oh , I am so tired . My back is sore and my neck hurts .
Person1: That's normal . You have been sitting for three hours , with your attention highly concentrated .
Person2:You are wrong , Shirley . I was always absent-minded in the class . I meant to concentrate on the class , but I was just so tired . Maybe I am old .
Person1: No . You are just burning yourself out these days . Have a good rest and you will feel energetic again .
Person2:One of my friends took the Adult College Entrance Exam last year . He filled the school column with his name , and his score was relinquished .
Person1: How could he make such a silly mistake ?
Person2:He said he hadn't taken any exams for ten years , and couldn't get used to it immediately . He was extremely nervous then .
Person1: He lost a very good chance to go to college , didn't he ?
Person2:Yeah . The test was fairly easy and almost every test-taker could pass that exam . Adult College Entrance Exam is much easier than college entrance exam . And there are fewer subjects .
Person1: That's a very good lesson . We must familiarize ourselves with the exam from now on .

SOLUTION: formal

PROBLEM: Person1: What are you studying all day long for ? It ' s summer vacation !
Person2:I know ! I hate it ! But I ' m taking this crash course in math .
Person1: Why ?
Person2:I have to take my exams for getting into the university , so I need to prepare .
Person1: Do you think it will help ?
Person2:It has to ! I ' Ve been studying every day , eight hours a day ! I don ' t know , but the school has a great success record .
Person1: Hmm ... Maybe I should sign up too .
Person2:I ' ll pick up an application form for you at school tomorrow .

SOLUTION:
formal