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:     Oh , no . It seems that I've lost my train ticket .  
 Person2:  Are you kidding ? The train leaves in an hour . Where did you put it ?  
 Person1:      It was in my pocket , but now I can't find it .  
 Person2:  Is it in the other pocket ?  
 Person1:      No , it is not here . Damn it ! I'm going to have to buy another ticket .  
 Person2:  Let's go to the inquiry desk first to check whether anyone has got it and turned it in .  
 Person1:      OK . 

0