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's wrong ? You don't like ancient Egypt ?  
 Person2:  Actually , I don't like history . Lately , these shows are always about the Pyramids .  
 Person1:      The Pyramids are amazing ! Millions of gigantic stones ... each one perfect ...  
 Person2:  And nobody knows who built them , right ? It's a total mystery !  
 Person1:      You sound like the TV ! You're not going to tell me that aliens built the Pyramids , are you ? 

1