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:     Excuse me , do you know the shortcut to the Lincoln park ?  
 Person2:  Well , there does have one . Walk along the road and turn left when you come to a bystreet . It will lead you to the back gate of the park .  
 Person1:      Thank you very much . Is the back gate open now ?  
 Person2:  I don't think so . 

1