instruction:
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'.
question:
 Person1:       I'm reading an interesting report on Mars . 
 Person2:Oh , what does it say ? Does it say water could still exist under the surface of Mars ? 
 Person1:        Absolutely ! It says there is water on Mars buried beneath the surface . It's just a matter of how deep it is . 
 Person2:Then could the soil on Mars somehow be fertile enough to Groh simple plants ? 
 Person1:        The soil would need quite a bit of fertilizer to grow anything . And it would need to be protected from the UV radiation . 
 Person2:Actually , we are doing a project in school that involves landing a ship and staying on Mars for an extended period of time . Does NASA have any type of portable habitats that could be used to stay on the planet ? 
 Person1:        I'm not sure NASA has built any portable habitats for extended stays on Mars , but they have looked at various designs . 
 Person2:One of the most exciting things about Mars is that there could have bean life on it . What are your personal opinions on the life on Mars theory ? 
 Person1:        Well , I'm not really an expert in this area , but my understanding is that anything is possible . It's just that it is so hard to determine what went on 4.5 billion years ago . 
 Person2:But maybe there is a chance of gradually improving the surface and atmosphere of Mars so it may be inhabitable by humans . 
 Person1:        I'm skeptical . Mars is made of rocks containing silicon , iron , and various minerals . It also has an atmosphere of carbon dioxide . It is so different from what we have on earth , you know . 
 Person2:I'd still like to hope that some day we could set up a human colony there . 
 Person1:        But there are still other big problems we need to solve such as prolonged weightlessness , food storage , and a series of physiological effects . 
answer:
formal


question:
 Person1:       Hello !  
 Person2:Hi , Jenny ! Jason here . It's great to hear your voice again .  
 Person1:        Hi , Jason ! Long time no see . How's the hotel ?  
 Person2:It's pretty nice , but I'm going to start looking for an apartment soon . Hotel living is not for me .  
 Person1:        I know what you mean .  
 Person2:How about you ? When are you leaving for Berkeley ?  
 Person1:        I am leaving in two weeks .  
 Person2:So soon ! Well , I'd really like to see you again before you leave . Would you like to go out with me on Friday ? I'd like to take you to dinner and maybe a movie or something afterwards .  
 Person1:        Oh , I am sorry , Jason . I've already got plans for Friday evening . How about Saturday ?  
 Person2:Saturday is fine . I'll make dinner reservations for 7 o ’ clock . Is that ok ?  
 Person1:        7 is fine with me .  
 Person2:Great . I'll pick you up at six thirty .  
 Person1:        I'll be waiting . 
answer:
informal


question:
 Person1:       Why weren't you at school yesterday ?  
 Person2:I wasn't feeling really well .  
 Person1:        What was wrong with you ?  
 Person2:My stomach was upset .  
 Person1:        Do you feel better now ?  
 Person2:I don't really feel too well yet .  
 Person1:        Do you want anything to make you feel better ?  
 Person2:No , thanks . I already took some medicine .  
 Person1:        I hope you feel better .  
 Person2:Thank you . 
answer:

formal


