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:     You honestly believe the world ’ s improving every year ?  
 Person2:  Yes , I do . I think that science is making us wiser . What do you think ?  
 Person1:      I don ’ t think you ’ re right there .  
 Person2:  I believe industry is making us wealthier .  
 Person1:      I don ’ t believe that .  
 Person2:  And in my opinion , medicine is making us healthier .  
 Person1:      I agree with you in the sense . But we ’ re all more miserable than ever , aren ’ t we ?  
 Person2:  I don ’ t agree with you . I maintain that we ’ re healthier , wealthier and wiser than we were a hundred years ago .  
 Person1:      That ’ s your opinion not mine . 

1