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.

[EX Q]: Category: ELEMENT NAMES 
Clue: Found by Carl Gustav Mosander, terbium is named for Ytterby, a village in this country
[EX A]: sweden

[EX Q]: Category: BEFORE HE WAS PRESIDENT... 
Clue: He went to Stanford & became a mining engineer
[EX A]: hoover

[EX Q]: Category: 1706 
Clue: In 1706 Charles XII of this Scandinavian country invaded Saxony as part of the "Great Northern War"
[EX A]:
sweden