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: U.S. POLITICS 
Clue: This city has been the site of more major party presidential nominating conventions than any other

Output: chicago


Input: Consider Input: Category: SIGNS & SYMBOLS 
Clue: Created in 1970 & made up of 3 arrows, the universal symbol for this was based on the Mobius strip

Output: recycling


Input: Consider Input: Category: HISTORIC MEDIUMS 
Clue: In the '20s the alleged spirit powers of Margery caused a rift between these 2 men, a magician & a writer


Output: harry houdini & sir arthur conan doyle