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:     Hello , Bob , this is Frank .  
 Person2:  I know , we've met .  
 Person1:      I didn't know you knew Frank .  
 Person2:  Yes , we met last year at a conference . 

0