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:     Rachel , do you like music ?  
 Person2:  Of course . I can't live without it , so I always bring my CD with me no matter where I go .  
 Person1:      What kind of music do you like best ?  
 Person2:  Light music and classic music .  
 Person1:      Really ? I can't believe this . I am also keen on classic music . And do you know there is a concert of classic music tomorrow evening ?  
 Person2:  But I didn't get the ticket . And it is said that they were sold out yesterday .  
 Person1:      I got two . We can go there together .  
 Person2:  Amazing ! I can imagine the feeling when I hear the smooth tune around my ears . 

1