Definition: You are given a conversation between two people. 'Person1:' and 'Person2:' are used to separate their respective dialogues. If the conversation begins with a question, label it '1' otherwise '0'.
Input:  Person1:     I'm sorry , but I can't find the book you lent me . I guess I have lost it .  
 Person2:  Don't worry about it .  
 Person1:      I really feel bad about it . Let me buy you a new one .  
 Person2:  No . Don't be silly . I wouldn't dream of letting you do that . 

0