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:     May I have a word with you ?  
 Person2:  Certainly .  
 Person1:      When will you be free ?  
 Person2:  Come by any time .  
 Person1:      Shall I say around ten o'clock ?  
 Person2:  Yes , I'll be waiting for you in my home by 10:00 . 

1