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.
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Question: Category: 20TH CENTURY PRESIDENTS 
Clue: The Profile in Courage Award is presented on or near the anniv. of his birth; he would have been 80 May 29, 1997

Answer: john f. kennedy


Question: Category: UNITS OF MEASURE 
Clue: The scale on the bottom of a sextant is in these units

Answer: degrees


Question: Category: BATTLE TO NAME THE WAR 
Clue: No one enjoyed the portions at Pork Chop Hill

Answer:
the korean war