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: The Hall of Mirrors is in which building?
Example Output: palace of versailles

Example Input: Of the five Marx brothers who appeared on film, who was the oldest ?
Example Output: chico

Example Input: Romania and which other country joined the EU on the 1st January 2007?
Example Output:
bulgaria