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: IN THE PAST MILLENNIUM 
Clue: In 1066 this group conquered England

SOLUTION: normans

PROBLEM: Category: TWAIN TRACTS 
Clue: "The two went and stood side by side before a great mirror and lo, a miracle: there did not seem to have been any change"

SOLUTION: the prince and the pauper

PROBLEM: Category: NORTHWESTERN 
Clue: You'll find this bay at the northwestern-most point of the Pyrenees

SOLUTION:
bay of biscay