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:     Mary likes mountain climbing .  
 Person2:  What ? No kidding !  
 Person1:      Yes , she's a professional climber .  
 Person2:  I can't believe it ! 

0