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.

Example Input: Category: THE 16th CENTURY 
Clue: In the 1569 Union of Lublin, Zygmunt II united Lithuania & this country
Example Output: poland

Example Input: Category: THE 1930s 
Clue: On September 18, 1934 the Soviet Union joined this international organization
Example Output: league of nations

Example Input: Category: TIME FOR A "CON"TEST 
Clue: Though it possibly dates from the 16th century, the origin of this word for a punny riddle is a mystery in itself
Example Output:
conundrum