instruction:
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.
question:
Which billionaire married Melinda French in 1995?
answer:
bill gates


question:
Which king experienced regicide at the hands of Shakespeare's Macbeth?
answer:
king duncan


question:
Hubert Humphrey served as Vice-President to which US President?
answer:

lyndon b. johnson