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 book is that ?  
 Person2:  I just bought a new atlas . I ’ m looking this map of the world . Look at Russia ! That ’ s a vast country .  
 Person1:      Canada , china , and the use are huge too .  
 Person2:  There are several tiny countries in the world too . Countries like Monaco are smaller than many cities .  
 Person1:      Those small countries are microscopic compared to Russia . European countries are relatively small . France looks quite big in Europe , but compared to many countries in other continents , it ’ s not very l  
 Person2:  Britain is half the size of france , but great Britain is still one of the largest islands in the world .  
 Person1:      The thing with large countries is that often they have vast areas of land that are useless or hardly used . Russia and Canada have enormous areas of ice and forest . 

1