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:     What's the name of the singer who sings this song ?  
 Person2:  I can't remember .  
 Person1:      It's on the tip of my tongue . I think it starts with a ' B ' . 

1