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: INVENTIONS
Clue: Josephine Cochrane's 1886 version of this consisted of a copper boiler, wire baskets & a pump

A: a dishwasher
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Q: Category: TRANSPORTATION
Clue: The name of this airline established in 1948 means "skyward"

A: el al
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Q: Category: U.S. STRUCTURES
Clue: On December 6, 1884 this was capped with a 100-oz., 9-inch-high pyramid-shaped block of aluminum, a metal that was rare at the time

A:
the washington monument
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