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 do people usually do on Saint Valentine's Day ?  
 Person2:  On that day , boys are supposed to give roses to their sweethearts .  
 Person1:      What will the girls do ?  
 Person2:  They give chocolate in return . 

1