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 did you buy at the market ?  
 Person2:  I bought some special local products .  
 Person1:      You seem to have bought the whole market !  
 Person2:  Yes . I really wanted to do so . I love those handicrafts , especially the paper-cut .  
 Person1:      Paper-cuts are all hand-made . Let me see the paper-cuts you bought . They are all animals .  
 Person2:  Aren't animals the main content of Chinese paper-cuts ?  
 Person1:      All right . Animals , especially Chinese zodiac , are the most common theme in paper-cuts . But there are other themes .  
 Person2:  Then I will buy some tomorrow .  
 Person1:      Why do you want to buy so much ?  
 Person2:  Because I want to send them to my friends .  
 Person1:      I see . 

1