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:     Is your city a historical place ?  
 Person2:  Not rally . 200 years ago , it was just a small insignificant village .  
 Person1:      How did it grow into such a large place ?  
 Person2:  Large deposits of coal were found nearly and so many industries located themselves here . The village quickly grew into a key industrial centre .  
 Person1:      As the city grew , it must have absorbed many village nearby .  
 Person2:  Yes , it did . The names of those village survive as the names of parts of the city .  
 Person1:      I see . Are there any building more than 200 years old in your city ?  
 Person2:  Oh , yes . Several of the buildings from the villages still survive . Many of them were inns for travelers and today survive as pubs . There was a castle near one village , so our city has a castle too .  
 Person1:      Really ? So your city does have some old history after all . 

1