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 is the most unexpected thing you experienced in space ?  
 Person2:  I wasn't quite prepared for the view of the Earth as we left . It was just awe-inspiring . It emerged from just a slightly curved horizon to a whole Earth , where you could look across oceans and continents in a single glance . I wasn't quite prepared for that . It's inevitably etched in my memory .  
 Person1:      When viewing the Earth from space , do you feel detached from humanity or more a part of the totality of humankind ?  
 Person2:  Detached . You're literally detached from one planet , captured by another . Your only link to reality is the Earth out there ; fortunate - 1y , it stays in view the whole time .  
 Person1:      There're a lot of suspicions that the International Space Station is never going to become reality . Is it going to be some future project that never happens ?  
 Person2:  I believe it's certainly for real . It without question has suffered a lot of delays . But there's hardware sitting on the pad right now and it's due to go off in December . It is a reality . It has just taken longer to get literally off the ground .  
 Person1:      There were a lot of talks during the Bush administration about a not too distant future Mars mission . It seemed to fizzle out . Do you think that this Shuttle mission will reignite the public's passion for space and get us to Mars sooner ?  
 Person2:  I hope this flight is not just a one-time affair , that it does re-ignite people's interest to push on . But only time will tell .  
 Person1:      You had gone to the moon twice , orbited space around the Earth lots of times , and of course you have had the most amazing views that a human being can have . How long do we ordinary beings have to wait to feel the weightlessness ? I just can't wait .  
 Person2:  If I were the man making the decisions , you could get in line tomorrow . I strongly support ordinary people going into space . Unfortunately , I don't think it will be in the near future . 

1