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 are you doing ? 
 Person2:  I ’ m just looking at this map of the world . I ’ m preparing for a geography class . 
 Person1:      There are no countries marked on the map . 
 Person2:  No , there aren ’ t . this map just show the geographical features . Look at the Himalayan plateau with the highest peaks in the world . 
 Person1:      The thing that I find most surprising is that most of the world is covered with water . Compared to the oceans , most countries are tiny . 
 Person2:  I find it incredible how millions of years of volcanic activity have created mountains thousands of metres tall . 
 Person1:      Rivers have created deep valleys and canyons like the grand canyon . 
 Person2:  The oceans and landscapes all influence our climate . 
 Person1:      It ’ s all so interesting . I ’ ll have to find more information about it on the internet . Or perhaps I should try and attend your geography class . 

1