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:     We ’ re going to the movies . Will you join us ? 
 Person2:  I ’ m very sorry I can ’ t . 
 Person1:      Why not ? 
 Person2:  I ’ m afraid I have some business to attend to . 
 Person1:      Then would you like to have lunch with us ? 
 Person2:  I ’ d love to but I have to help John with his math problems right now . 
 Person1:      Would you like me to give you a lift ? 
 Person2:  No , thanks . His home is not far and I can walk there . 
 Person1:      Come on . It ’ s no trouble at all . 
 Person2:  Ok , thank you . 

0