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:     Hi , Steven ! What do you like to do during the weekend ?  
 Person2:  I love swimming and cycling . On Saturday morning I usually ride my bike around the city or the country road for almost two hours .  
 Person1:      That ’ s great ! I think they do you a lot of good .  
 Person2:  Sure , they do .  
 Person1:      But why do you choose cycling at first ?  
 Person2:  Because it is convenient and good for environmental protection .  
 Person1:      You are really a good citizen .  
 Person2:  That ’ s what I can do . 

1