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:     That sounds pretty good . But isn't downloading music illegal ?  
 Person2:  Not if you pay for it . For example , if you download from iTunes and pay with your credit card , it's legal .  
 Person1:      OK , I'm going to get iTunes and download some Vanilla Ice songs .  
 Person2:  Awesome . You'll see that they are really catchy . 

1