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

Richard Addinsell's most famous piece of music was used in the 1941 film 'Dangerous Moonlight', what is its title?
dangerous moonlight

The Trinity test site, outside of Alamogordo, NM, saw the first test of the atomic bomb on July 16, 1945. Headed by J. Robert Oppenheimer, what was the name of the project that developed the bomb?
j. robert oppenheimer

Who was Prime Minister of Britain at the time of King Edward VIII's abdication in 1936?

britain