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:     How do Mark and Jones compare , in your opinion ?  
 Person2:  Generally speaking , Mark's personality is much more agreeable than Jones  
 Person1:      May I venture to ask if you've decided to employ Mark ?  
 Person2:  Possibly . 

1