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:     Do you take a bus to and from work ?  
 Person2:  Yeah , everyday . And there ’ s only one choice.All the other buses are going the other direction .  
 Person1:      Hmm . I have the same problem . When I leave work , it ’ s always rush hour.So the buses are always crowded .  
 Person2:  Oh , yeah , it ’ s terrible . I will tell you the funniest thing I have seen in China . It ’ s when so many people try to get onto one city bus , and the last guy is squeezed in so tight that the door is tightly pressed against his butt .  
 Person1:      That sounds terrible the way you describe it . But you know , not long ago I really suffered on the bus .  
 Person2:  What happened ? Were you having a hard time getting on a bus ?  
 Person1:      You just can ’ t imagine ! I waited for the first bus but it was too full , so I waited for the second , and it was still very crowded . Then I decided not to wait for the next one , and got on the second bus . It was so full that I had to stand on one foot ! No kidding !  
 Person2:  Hmm . Good exercise , uh ?  
 Person1:      Yeah , absolutely !  
 Person2:  And it ’ s so much fun . One day , the bodies were so tightly packed that some girl ’ s behind was pressed against my front . I was afraid to put my hands down for fear of accidentally groping her .  
 Person1:      You were so happy , weren ’ t you ?  
 Person2:  What do you think ? I ’ m a good boy . 

1