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:       Have we handed out all the water ? 
 Person2:Yes . So what else to do now ? 
 Person1:        Nothing . The teacher said the only thing left was to get back all the disposable cups later . 
 Person2:I see . How do you like the game ? 
 Person1:        Terrific . There is one girl said , It is the best game I've ever watched . 
 Person2:Who do you think do better ? 
 Person1:        Clive was really outstanding . Not only he put on a big show himself , but also he inspired the whole team . 
 Person2:Exactly . He is unbelievable . 
 Person1:        On the other hand , I think the other team won everyone's respect . The leader said they could have crumpled at the beginning , but they just carried on and never lost their cool . 
 Person2:They were really tough . 
 Person1:        The thing I like most about them is that they did not play with a heavy heart even though at that time the odds seemed to be against them . 
 Person2:I can't agree more . Okay , time is up . Let's do the last thing . 

formal