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:     There are so many environment problems in the world today . Do you think we can really solve them all or will destroy the world ?  
 Person2:  I hope that world leaders can get together and agree on a plan for action , but I doubt it ’ ll happen before it ’ s too late .  
 Person1:      We need to solve the problem of air pollution before we destroy the atmosphere . There ’ s lots of clean , modern technology , but companies in developed countries say it ’ s expensive . Developing countries put more emphasis on economic development than on environment protection .  
 Person2:  Everyone is looking at the issue in the short term , rather than the long term . It ’ s the same with the destruction of the rainforests . Countries and companies just want the wood . They ’ re not thinking about the long-term damage to the forests . We should also remember that the forests are an important natural habitat for thousands of species of animal and plant life .  
 Person1:      In other parts of the world , especially in Africa , there is a problem with desertification . Climate change and over-farming are causing farmland to turn into desert . In means that people cannot grow enough food .  
 Person2:  It also means that people sometimes fight over the famp 3land that remains . Damaging the environment actually leads to conflict between people .  
 Person1:      Have you ever thought about joining an organization committed to protecting the environment ? You could get involved with projects to improve the environment .  
 Person2:  I think I ’ d like to do that . I could take the things I learn here back to my country when I have finished my studies . 

1