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: PICTURE BOOK TITLE ANIMALS 
Clue: "If You Give a ____ a Cookie"
Example Output: mouse

Example Input: Category: PLAYWRIGHTS 
Clue: In 1979 this author of "Streamers" married Jill Clayburgh
Example Output: david rabe

Example Input: Category: TORONTO'S CN TOWER 
Clue: The world's tallest self-supporting structure at 1,815 feet, the CN Tower was built by this railway company
Example Output:
canadian national