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 , are cameras allowed here ?  
 Person2:  Sorry , sir , in order to protect these paintings , taking photos are strictly forbidden here .  
 Person1:      I see . What a pity . I have to appreciate it carefully .  
 Person2:  I am really sorry for that . 

0