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:     Have you ever sung with a karaoke ?  
 Person2:  Yes , I do it quite often .  
 Person1:      Karaoke has become a major entertainment . I wonder why .  
 Person2:  Simple , it's fun .  
 Person1:      How much fun is there in singing in front of other people , especially if you don't sing well ?  
 Person2:  Ah , that's the biggest fun of all . You see , even though you're not a good singer , people will listen to you .  
 Person1:      I wouldn't do that .  
 Person2:  But I like the feeling . 

1