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:     How long have you been living in New York ?  
 Person2:  Oh , about two years now .  
 Person1:      Where do your parents live ?  
 Person2:  They still live in Shanghai where I was born .  
 Person1:      Do you write or call them very much ?  
 Person2:  Yes , I try to keep in touch with them . 

1