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

Example Input: Pirate Edward Teach was better known by what nickname?
Example Output: edward teach

Example Input: July 1938 saw the first ascent of the North Face of which Alpine mountain?
Example Output: alps

Example Input: In which city would you find the following; Aventine, Caelian, Capitoline, Esquiline, Palatine, Quirinal and Viminal?
Example Output:
viminal hill