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.

Example Input: Category: THE TOWER 
Clue: Lightning not only strikes the same place twice, it strikes this 110-story Chicago tower hundreds of times a year
Example Output: sears tower

Example Input: Category: FICTIONAL BATTLES & WARS 
Clue: Juan Rico joins the mobile infantry to fight in the war against the invading alien "bugs" in this Heinlein novel
Example Output: starship troopers

Example Input: Category: EXPLORERS 
Clue: While searching for the 7 Cities of Cibola in 1540, this conquistador's party reached the Grand Canyon
Example Output:
francisco coronado