Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
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Question: Who directed the 2005 film 'Brokeback Mountain'?

Answer: brokeback mountain


Question: Which country on the West African coast lies between The Democratic Republic of the Congo and Namibia?

Answer: democratic republic of the congo


Question: The city of Brest in modern day Belarus was once known as Brest-Litovsk, site of the 1918 treaty between Soviet Russia and the Central Powers. For what present day country did the word Litovsk refer?

Answer:
belarus