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.

Input: Consider Input: Which metal is mainly derived from the ore haematite?

Output: iron


Input: Consider Input: What is the SI Unit of Luminous Intensity?

Output: candela


Input: Consider Input: January 16 saw the passing of Glen Bell, at the age of 86, founder of what major fast food chain?


Output: taco bell