Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.

[Q]: Which band had a hit with the song 'Brown Girl in the Ring'?
[A]: brown girl in the ring

[Q]: Which boxer won a 1.8m claim against promotor Frank Warren in March 2009?
[A]: boxing

[Q]: What country in North Africa, bordered by Tunisia, Libya, Niger, Mali, Mauritania, Western Sahara, Morocco and the Mediterranean Sea, is the largest country on the Mediterranean, and the second largest on the African continent and in the Arab world?
[A]:
sahara