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 language do you speak ?  
 Person2:Well , I studied French at school , but I ’ Ve forgotten most of it . I learnt some Russian while I was studying there and now I study Spanish in evening classes . Do you speak Japanese at home with your parents ?  
 Person1:        Yes , I do . I ’ m learning Chinese now on the internet .  
 Person2:How do you find studying a language on the internet ?  
 Person1:        It ’ s not easy , particularly with listening and speaking , because sometimes the connection isn ’ t too good .  
 Person2:I bet you find the character difficult to write !  
 Person1:        Actually , many of the characters are the same or very similar in both Chinese and Japanese , so they ’ re easy for me .  
 Person2:So , you can read and write much better than you speak and understand other speakers , right ?  
 Person1:        Yes . How are the Spanish classes going ?  
 Person2:In a way , it ’ s similar to your experience of learning Chinese . Some Spanish words are very similar to English ones . But I need to practise listening to native speakers and saying the words myself . 

formal