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: DUEL 
Clue: In English-speaking countries, once a duel was accepted, this person chose the weapons to be used

Output: the person being challenged


Input: Consider Input: Category: INVENTIONS 
Clue: The typewriter was 1st mass-produced in the 1870s by this gun manufacturer

Output: remington


Input: Consider Input: Category: PAINTINGS 
Clue: His 2nd & 3rd most famous women's portraits are "Cecilia Gallerani" & "Ginevra de' Benci"


Output: leonardo da vinci