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:       The woman was beaten again . Why didn ’ t she call the police .  
 Person2:Because it was her husband who beat her .  
 Person1:        It is incredible .  
 Person2:She said that she didn ’ t want to foul her own nest . 

informal