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:     Can you recommend a resort to me ?  
 Person2:  What about the Yellowstone National Park ?  
 Person1:      Have you ever been there ?  
 Person2:  Yes . The scenery is so breathtaking .  
 Person1:      What is especially impressive ?  
 Person2:  There are thousands of hot springs and fountains . The park is known for them .  
 Person1:      Is there a waterfall ?  
 Person2:  Yes . The well-known Yellowstone Waterfall is formed when the Yellowstone Lake falls down into the Yellowstone Canyon .  
 Person1:      What an attractive place ! How can I get there ?  
 Person2:  You can take No . 2 bus . 

1