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:     Why did you buy that painting ?  
 Person2:  I think it's beautiful . I want to hang it in the living room .  
 Person1:      It looks like some kind of mistake .  
 Person2:  That's the beauty of it — the imperfection .  
 Person1:      Oh . Who is the artist ?  
 Person2:  Your daughter . She sold it at the school auction .  
 Person1:      Oh ! How about we hang it over here where everyone can see it ?  
 Person2:  I guess you see the value in it , too . 

1