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 you think of the lawyer's speech ?  
 Person2:  He has a glib tongue . Few people can argue him down .  
 Person1:      Don't believe him . He's liar .  
 Person2:  We cannot expect a man like him to speak the truth . 

1