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 Shakespeare play do the characters Ajax, Achilles and Ulysses appear?
Example Output: achilles

Example Input: Bob Clampett created which character in 1938?
Example Output: bob clampett

Example Input: Over one third of which state of the USA is in the Arctic Circle?
Example Output:
arctic