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:     Have you ever thought about having children , Kaitlyn ? 
 Person2:  My husband and I have thought about it , but we ’ Ve decided not to have any . They are just too expensive . Besides , with all the news about global warming on the news lately , who knows what kind of world we ’ ll have in the future . What about you ? 
 Person1:      Well , I ’ Ve always wanted to have lots of children . Growing up with only one brother , I always felt a bit lonely . What do you think about families with only one child ? 
 Person2:  For me , growing up in a big family always made me yearn for attention . I always wanted to be an only child so that I could always do what I wanted and so that I wouldn ’ t ever have to share . 
 Person1:      Don ’ t you think you would miss having other people around ? 
 Person2:  No way ! I spent 20 years of my life with relatives around me 24-7 . you know , I don ’ t think I ’ Ve ever actually spent any time by myself in my parents ’ home . What do you think of the one-child policy in China ? 
 Person1:      If China didn ’ t have such a policy , can you imagine how many people there would be in China now ? 
 Person2:  That ’ s true . But as a woman , I ’ m glad that even though I don ’ t want any children , I at least have a choice in how many children I have . On the other hand , I can ’ t imagine what China would be like if there weren ’ t a one-child policy ! 
 Person1:      Do you think most families with many children envy or feel sorry for other families with only one child ? 
 Person2:  I don ’ t know what other people think , but I , for one , envy only children ! 

1