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 heard about the new iPhone ?  
 Person2:  yes , I heard it's supposed to come out in June . Are you thinking about getting one ?  
 Person1:      I'd like to . It's a cell phone , camera , PAD and mp3 player all in one .  
 Person2:  if I had enough money , I'd buy one , but I don't even have enough to buy one of their shuffle spods .  
 Person1:      how big is a shuffle iPod ?  
 Person2:  the first generation iPod shuffle is about the size of a park of gum and the second generation iPod shuffle is about half the size of the first .  
 Person1:      how many gigs of music can it hold ?  
 Person2:  I think it's either one or two gigs . I can't remember .  
 Person1:      how much do they cost ?  
 Person2:  not much at all . I think it's about 100 dollars .  
 Person1:      you're right , that's not bad at all .  
 Person2:  do you have an iPod ?  
 Person1:      I got one for my birthday when they first came out , but after the battery died out , I never brought another one .  
 Person2:  why didn't you just buy another battery for it so you could use it ?  
 Person1:      that's one of the problems with having an iPod . Though an iPod might have an above average battery life , once the battery is dead , so is your iPod . 

1