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:     Beautiful weather , isn ’ t it ?  
 Person2:  Yes , it is . Are you here on business ?  
 Person1:      No , I ’ m on a vacation to see the famous Three Gorges .  
 Person2:  I ’ m going there for a tour , too . Is this your first trip to China ?  
 Person1:      Yes , it is .  
 Person2:  Why don ’ t we go together ? I can show you around . I think you ’ ll have a better time .  
 Person1:      I couldn ’ t agree more .  
 Person2:  Great , let ’ s go ! 

1