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.

Category: BRITISH LEGENDARY POETRY 
Clue: The first edition of this collection of poems did not include "The Last Tournament"; it was added in the 1870s
idylls of the king

Category: A 1950s POEM 
Clue: "Whole intellects... who demanded sanity trials... & were left with their insanity & their hands & a hung jury"
\"howl\"

Category: SPACE: 2007 
Clue: A NASA Mars lander has this mythic name because it was made of parts from a scrapped 2001 mission

phoenix