Given an trivia question precisely answer the question with a word/phrase/name. External resources such as Wikipedia could be used to obtain the facts.

Example Input: Who played Commodus in the 2000 film Gladiator?
Example Output: joaquin phoenix

Example Input: What did James Naismith invent in 1891?
Example Output: basketball

Example Input: Magnesium sulphate is a substance used for medicinal and agricultural purposes. By what name is it better known?
Example Output:
magnesium sulfate