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:     Now I understand . But I don't smoke or drink.So what am I supposed to buy in here ?  
 Person2:  You can buy some of these nice butterflies .  
 Person1:      No , I'm sorry . I don't think it is nice to have butterflies mounted in boxes.It is kind of disgusting .  
 Person2:  What ? You feel sorry for the butterflies ?  
 Person1:      Yes . I think they should just let them fly free , and not try to sell them to foreigners . It is a kind of destruction of nature .  
 Person2:  Well , I agree with you . I'd rather think that the butterflies are flying around in the mountains . I just wonder if they really catch so many that it affects the butterfly population .  
 Person1:      Who knows ? Hey , I like these jade bears here .  
 Person2:  How much are they ?  
 Person1:      This one is 2300 dollars.Maybe I should buy it for my mother . What do you think ?  
 Person2:  If you want . Didn't you buy her a small vase already ?  
 Person1:      Yes , but she would like this a lot . She likes to collect little things like this .  
 Person2:  Alright . Buy it then . I won't buy anything . Well , maybe I'll buy some Cognac .  
 Person1:      Maybe I could buy some Cognac for my brother . He always drinks it .  
 Person2:  Let's go ask about it . 

1