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:     are you still coming to my place for dinner tomorrow night ?  
 Person2:  of course . Is the dinner still on ?  
 Person1:      yes , I was just wondering how you and your roommate were planning on coming to my place .  
 Person2:  we were planning on walking both ways since the weather is still nice .  
 Person1:      that's what I thought you would do . Listen , I live in a bit of a rough neighborhood . It's just down the street from all the bars . You probably don't want to be walking around after dark .  
 Person2:  it can't be that bad .  
 Person1:      I wish it wasn't , but there is actually a lot of crime and prostitution around here .  
 Person2:  really ? I never would have guessed . The criminals must only come out in the evenings , because I've never noticed anything strange when I've been at your house in the daytime .  
 Person1:      do me a favor , and take a taxi . It'd make me feel a lot better .  
 Person2:  ok , we will . How do you get around in the evenings ?  
 Person1:      when I first moved in , I walked everywhere . But within a week , I had my purse stolen — just a block away from the police station ! Now , I always take public transportation .  
 Person2:  has anything else happened to you ?  
 Person1:      nothing else has happened to me , but I have seen quite a few fights on the streets after the bars close .  
 Person2:  well , we'll be careful . Thanks for letting me know . 

1