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:     Er ... Alison ?  
 Person2:  Ohm , hello , Marcia . I was ...  
 Person1:      I just wanted to congratulate you ! I mean , it was a good race and you deserve to win .  
 Person2:  Well ... thanks , Marcia.It ' s very nice of you to say so . I mean ...  
 Person1:      It was that final sprint ! You were great ! Really !  
 Person2:  Do you really think so ? I mean , was I ? Er ... you ... must be disappointed . 

1