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

Who married the woman who was to become Queen Beatrix of the Netherlands, on 10 March 1966?
beatrix

'Edward Lewis' and 'Vivian Ward' were the principal characters in which popular 1990 film?
edward lewis

Also in the Musee d'Orsay, who painted Bedroom in Arles in the 1880s?

bedroom in arles