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: CLASSICAL COMPOSERS 
Clue: The first movement of his 1868 first symphony is subtitled "Dreams of a Winter Journey"

SOLUTION: pyotr ilyich tchaikovsky

PROBLEM: Category: EXPLORERS 
Clue: On hearing of the discovery of George Mallory's body, this man told reporters he still thinks he was first

SOLUTION: sir edmund hillary

PROBLEM: Category: ANCIENT WRITERS 
Clue: Born in 43 B.C., his most famous work begins, "My intention is to tell of bodies changed to different forms"

SOLUTION:
ovid