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.

Input: Consider Input: Category: HISTORIC EUROPEAN LEADERS 
Clue: On June 15, 1961 Walter Ulbricht assured journalists that "No one intends to build a wall" dividing this city

Output: berlin


Input: Consider Input: Category: ON THE COAST 
Clue: A 19th c. "Committee of Vigilance" fought the crime that gave part of San Francisco this North Africa-inspired nickname

Output: the barbary coast


Input: Consider Input: Category: SCIENCE & TECHNOLOGY 
Clue: George Nissen invented this, a "bouncing table", after seeing how circus performers bounced into safety nets


Output: trampoline