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:     Tom , we are in the restaurant now !  
 Person2:  May I take your order ?  
 Person1:      I'd like to see the menu , please .  
 Person2:  OK , here you are .  
 Person1:      Thanks . I am starving . Tom , what are you getting ?  
 Person2:  I have no idea . First time here .  
 Person1:      Let me see ... What's this , shrimp rolls ?  
 Person2:  Oh , it's rice rolls with fried shrimp inside .  
 Person1:      Twenty five yuan is a little expensive .  
 Person2:  There are twenty rolls in a bowl . You can get another bowl for free if there aren't enough rolls .  
 Person1:      Sounds nice . We will take this , two bowls of shrimp rolls .  
 Person2:  OK , shrimp rolls . Do you want anything else ?  
 Person1:      We will have this one first and order something else later .  
 Person2:  OK , wait a moment please . 

0