TASK DEFINITION: You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For consistency, answers should be in all lower cased letters.
PROBLEM: Category: BELGIUM, BELARUS OR BELIZE 
Clue: It's part of the British Commonwealth of Nations

SOLUTION: belize

PROBLEM: Category: PEOPLE FROM PLACES 
Clue: Novocastrian is a posh name for residents of this British city on the Tyne

SOLUTION: new castle

PROBLEM: Category: IT'S REIGNING MEN 
Clue: In 1978 this Spaniard became the first crowned monarch to make an official visit to China

SOLUTION:
juan carlos