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:     Excuse me , would you mind taking a picture for us ? 
 Person2:  Of course not . Just tell me how to operate it . 
 Person1:      It's simple . Just press the button , like this . 
 Person2:  I know . Hold your position and say cheese . 
 Person1:      Thank you . 

0