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:     Let's invite Bobbie and John to our party , OK ?  
 Person2:  You can never do that .  
 Person1:      Why ?  
 Person2:  There's been bad blood between them since Bobbie took away John's girlfriend . 

0