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:     What courses are you taking ?  
 Person2:  Chinese , maths , English , chemistry , physics , biology and so on .  
 Person1:      What do you think about the teachers ?  
 Person2:  To be honest , I like most of them , except for my Chinese teacher . She is quite young , but her class is too boring !  
 Person1:      That's too bad . Do you have any foreign teachers ?  
 Person2:  Yes , my oral English teacher is an American . He is from a small town in California .  
 Person1:      What is he like ?  
 Person2:  He is great . He always tells us not to study for exams , and to pay more attention to communication rather than just memorizing .  
 Person1:      Are you able to follow him ?  
 Person2:  Not everything , but nearly . He speaks very clearly .  
 Person1:      Oh , that's good ! He sounds like a good teacher .  
 Person2:  Absolutely ! If you come to our class , I am sure you will like him . 

1