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:     Bill , your work is too messy .  
 Person2:  I'll pay attention to my handwriting next time .  
 Person1:      Is this a promise ?  
 Person2:  Yes , I'm serious this time . 

0