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 hit No.1 with Hollaback Girl in 2005?
Example Output: gwen stefani

Example Input: Derived from the Greek word meaning perimeter, what is the text form of the sixteenth letter of the Greek alphabet?
Example Output: pi

Example Input: Who became Chancellor of West Germany in 1969?
Example Output:
willy brandt