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 created the character Jason Bourne?
Example Output: robert ludlum

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: Which former US President is often referred to as LBJ?
Example Output:
lyndon b. johnson