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 are you hiding in your coat pocket ? 
 Person2:  It's a camera . 
 Person1:      You want to take pictures of the inside of your pocket ? 
 Person2:  Not even funny , Billy . This is my new snapshot sticker camera . 
 Person1:      What's that supposed to mean ? 
 Person2:  Well , there are adhesive strips on the backs . You can stick them anywhere . 

1