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:     How was the party yesterday ?  
 Person2:  Did you enjoy it ?  
 Person1:      Oh , don't talk to me about yesterday ! It was the most awful evening I've ever had .  
 Person2:  Why ! what happened ?  
 Person1:      Well.John had promised to be my date , but he stood me up . I waited for a full hour in the cold wind .  
 Person2:  So how long did you stay ?  
 Person1:      I left after the opening dance . I couldn't wait to get out of there . 

1