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

Example Input: What is the alcoholic ingredient of a Screwdriver cocktail?
Example Output: screwdriver

Example Input: Ornette Coleman, Louis Armstrong and Charles Mingus are associated with what style of music?
Example Output: charles mingus

Example Input: Which city, mythically founded by a twin saved by a she-wolf, was built on the seven hills, east of the River Tiber called Aventine, Caelian, Capitoline, Esquiline, Palatine, Quirinal and Viminal?
Example Output:
viminal hill