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:     Is the girl in red your girlfriend ?  
 Person2:  No , she isn't . My girlfriend hates red .  
 Person1:      Who's she then ?  
 Person2:  A classmate of mine . 

1