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:       Which church do you attend ?  
 Person2:I am Mormon , so I go to the Church of Jesus Christ of Latter Day Saints .  
 Person1:        What ’ s the difference between this and other Churches ?  
 Person2:Mormons believe that , after the death of Christ and the death of the Apostles 10 , their church Christ founded became corrupt and the authority of Christ on earth was lost to men . In 1830 , a prophet named Joseph Smith was brought up by God to restore the church .  
 Person1:        Then does that mean the other churches are corrupt ?  
 Person2:That means that they all have parts of the original gospel , but not all .  
 Person1:        Do you believe that Mormons have all of it ?  
 Person2:Yes .  
 Person1:        Why do you really go to church ?  
 Person2:We gather together to encourage each other , because we have common beliefs . We come together and call it church . 

formal