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 seen this ? 
 Person2:  What ? 
 Person1:      They killed another hostage . 
 Person2:  Oh , how awful . What a terrible thing to do . 
 Person1:      I agree completely . I just don't understand what's wrong with them . Don't they have any humanity ? 
 Person2:  Well , maybe they've got a point . I mean , I suspect that they think the same about us . 
 Person1:      Yes , but that doesn't make them right , does it ? Just because they think so ? 
 Person2:  I guess not . My view is that we should give in to their demands , so that innocent people can stop getting killed . 
 Person1:      Come on , you can't be serious ! We should never give in to terrorist's demands , otherwise where would we be ? 
 Person2:  Well , that's probably true , but I don't think we should be dogmatic about it . A colleague of mine was kidnapped once , so perhaps I have a different view of things . 
 Person1:      Really ? What happened ? 
 Person2:  Well , it was in the Balkans during the war . He was only held for three days , and then they simply released him . It was a case of mistaken identity , and they just let him go when they found out he was no use to them . It was lucky they didn't kill him . 
 Person1:      Oh , sure . 

1