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

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

Example Input: Which was the title of the 7th and final book in the Chronicles of Narnia by C.S. Lewis?
Example Output: the chronicles of narnia

Example Input: Umberto Boccioni and Carlo Carra are associated with which artistic movement founded by Filippo Marinetti in the early 20th century?
Example Output:
umberto boccioni