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.

Q: Category: ALL EARS 
Clue: An inner ear disorder kept this first American in space from retuning to space until 1971

A: alan b. shepard
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Q: Category: BLASTS FROM THE PAST 
Clue: Many treasures have been excavated from this royal valley (in Egypt)

A: valley of the kings
****
Q: Category: ALONG E-90 
Clue: We'll start our trip east on Route E-90 in this chief seaport of Portugal

A:
lisbon
****