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:     What is that you have there ?  
 Person2:  Aah ! Close your eyes . You aren't supposed to see this .  
 Person1:      Ah ha ! I caught you . Just let me peek . I won't tell anyone .  
 Person2:  You can't peek ! This is a surprise .  
 Person1:      How about one little hint ?  
 Person2:  Here's one little hint . If you don't go out right now , this won't be under the tree .  
 Person1:      That's a very good hint .  
 Person2:  And please shut the door and lock it behind you ! 

1