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:     Both our countries are quite small . How would you describe the landscape in your country ?  
 Person2:  My country is well know for being very flat . There are some hills in the southeast of the country .  
 Person1:      Is it really completely flat ?  
 Person2:  Pretty much . The land rises and falls only a few meters . The southeast , the hills rise to a height of a few hundred meters . There are mountains over 1000 meters high in your country .  
 Person1:      Yes , there are . They are not very big compared with the mountains in other countries .  
 Person2:  The coast of your country is very varied . The coast of my country is just made up of sandy beaches .  
 Person1:      That doesn ’ t sound too bad . Great for sunbathing ! The coast of my country changes even within a few kilometers . There are cliffs , then sandy beaches . Then rocks . There are lots of caves in the cliffs .  
 Person2:  There are many lakes and rivers in your country too . We also have many rivers , but only a few lakes .  
 Person1:      We also have waterfalls in the mountains . They make the landscapes look very scenic . The landscape has been shapes by millions of years of erosion , especially by water . 

1