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 simplicity, answers should be in all lower cased letters.
PROBLEM: Category: SOME SCIENCE, SOME NATURE 
Clue: The Hawaiian species of this is also known as the nene

SOLUTION: a goose

PROBLEM: Category: OXFORD UNIVERSITY 
Clue: He was expelled from Oxford but nevertheless learned 25 languages & translated "The Arabian Nights"

SOLUTION: sir richard burton

PROBLEM: Category: JOHNS IN FILM 
Clue: He had "true grit" as Rooster Cogburn

SOLUTION:
john wayne