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:     Does your child still believe in Santa Claus ? 
 Person2:  Yes . She believes everything about him . 
 Person1:      How sweet . 
 Person2:  Yes . If she doesn't believe it , Christmas won't be so exciting to her . 
 Person1:      When are you going to tell her that Santa Claus doesn't exist ? 
 Person2:  I'm not going to tell her . She will find out and understand when she grows older . 

1