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 do you make of the case ? 
 Person2:  If you ask me , I don ’ t think it ’ s guilty . 
 Person1:      What do you mean by saying so ? 
 Person2:  I mean it ’ s not his fault . 
 Person1:      Oh , yeah ? 
 Person2:  Yes . Don ’ t you think he should be pitied rather than accused ? 

1