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.

Ex Input:
Who played Commodus in the 2000 film Gladiator?

Ex Output:
joaquin phoenix


Ex Input:
Hubert Humphrey served as Vice-President to which US President?

Ex Output:
lyndon b. johnson


Ex Input:
Which female had a hit in 2011 Hold It Against Me?

Ex Output:

britney spears