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 many persons are there in your family ? 
 Person2:  There are three , my parents and I . 
 Person1:      Do you live together ? 
 Person2:  No , I live alone in a flat near my work place . 
 Person1:      Do you often go back to see your parents . 
 Person2:  Yes , almost once a week . 

1