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:     Did you like the play ?  
 Person2:  Not really . It's a dull one , and the production isn't satisfactory , either .  
 Person1:      You're absolutely right . The acting could be better .  
 Person2:  To be fair , though , both the costumes and scenery are marvelous . 

1