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:     Is there something wrong ? You look so sad .  
 Person2:  My house was robbed last night and the thieves stole all my furniture .  
 Person1:      No wonder you look so upset . Have you called the police ?  
 Person2:  Yes , I have . But I have to wait . 

1