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.

Input: Consider Input: Category: ANCIENT TIMES 
Clue: Because of his work there, you could call the astronomer Hipparchus "the colossus of" this island

Output: rhodes


Input: Consider Input: Category: ENGINEERING 
Clue: The motto of this 1904-1914 engineering project was "The land divided, the world united"

Output: the panama canal


Input: Consider Input: Category: U.S. PRESIDENTS 
Clue: In a letter to Horace Greeley he wrote, "My paramount object in this struggle is to save the Union"


Output: abraham lincoln