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:     Have you any idea of the prices of ruby and diamond ?  
 Person2:  I'm not very sure.but I know ruby is less valuable than diamond .  
 Person1:      How do you know that ?  
 Person2:  I got it from an encyclopedia . 

1