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:       I ’ m not a Christian . I just want to know why Americans believe that sort of thing .  
 Person2:Believe what ?  
 Person1:        You know ... like , say God is the creator of the universe , the Bible , and Jesus Christ ...  
 Person2:You don ’ t believe that ? Everyone interprets the Bible in a different way . To some people , the Gospel 5 is a source of much comfort .  
 Person1:        What do you believe , John ? Are you Christian ?  
 Person2:To tell you the truth , I don ’ t know if I ’ m a Christian or not . Christians don ’ t often share the same belief . But I believe that we all possess , by the grace of God , the potential to create fantastic changes on this earth .  
 Person1:        Do you believe that one religion is better than another ?  
 Person2:No , all religions are essentially based on the same ideals , so no one is really better .  
 Person1:        Do you go to church regularly ?  
 Person2:When I ’ m home in the States , I go , but not in China . 

formal