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 simplicity, answers should be in all lower cased letters.
PROBLEM: Category: QUICK BIOS 
Clue: Born near Gzhatsk in 1934; promoted to major in 1961 shortly before liftoff, just in case; died 1968

SOLUTION: yuri gagarin

PROBLEM: Category: SONGS 
Clue: The title song in an Elvis film, it was written for the 1937 Bing Crosby film "Waikiki Wedding"

SOLUTION: blue hawaii

PROBLEM: Category: COUNTRY DANCING 
Clue: The Czardas

SOLUTION:
hungary