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:     This is the good life ! We have it good don ’ t you think ? 
 Person2:  Yeah of course ! Although , don ’ t you ever wonder what could have been ? 
 Person1:      What do you mean ? 
 Person2:  Well , sometimes I think of how things could have turned out if I had done things a little differently . 
 Person1:      For example ? 
 Person2:  Like for example , if I hadn ’ t studied architecture , I would have become an artist like I wanted to . 
 Person1:      I see . Yeah now that I think of it , I wouldn ’ t have gotten married if I hadn ’ t moved to this town and met Sally . 
 Person2:  You see ! Everything happens for a reason ! We wouldn ’ t even have met if I hadn ’ t been in that car accident ten years ago ! 
 Person1:      Well , I have no regrets ! 
 Person2:  I ’ ll drink to that ! 

1