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

Example Input: In which Indian city is Eden Gardens, the second largest test cricket ground in the world?
Example Output: eden gardens

Example Input: Who had a 2000 hit with Country Grammar?
Example Output: country grammar

Example Input: Benjamin Franklin is usually credited with the creation of the first pair of what items of optical equipment in the early 1760s?
Example Output:
benjamin franklin