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:     do you like playing games ?  
 Person2:  I like playing computer games , but I'm not really into board games .  
 Person1:      how about individual games like the Rubik's cube or solitaire ?  
 Person2:  the Rubik's cube is so difficult to solve that I think it should be banned !  
 Person1:      if I taught you how to do it , I'm sure you could solve it .  
 Person2:  how did you figure out how to slove the Rubik's cube ?  
 Person1:      I didn't really have to figure it out . I just followed the instructions !  
 Person2:  I had no idea there were a set of instructions . I thought everyone who could solve it were all geniuses !  
 Person1:      hints are really important when you're solving puzzles . If you give me some hints about playing that PS2 game , I ’ ll show you how to solve the Rubik's cube .  
 Person2:  it's a deal .  
 Person1:      do you remember , years ago , when everybody at the New Year's party had yo-yos ?  
 Person2:  yeah . That was a strange party . Can you still do any of those yo-yo tricks ?  
 Person1:      I don't know . I haven't tried yo-yo since that party !  
 Person2:  I could never figure out how to use my yo-yo .  
 Person1:      if you don't start when you're young , it's hard to get the hang of it .  
 Person2:  let's get started with this game then .  
 Person1:      ok . 

1