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 live with your parents ?  
 Person2:  No , they live in Shanghai , my hometown .  
 Person1:      How often do you go back to visit them ?  
 Person2:  Once a year . 

1