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:
What is the capital of Iraq?
answer:
baghdad


question:
What note is produced at the twelfth fret of the top (highest pitched) string on a conventionally tuned guitar?
answer:
e


question:
Name the son of Marcus Aurelius who succeeded him as Roman Emperor from 180-192 AD.?
answer:

commodus