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.

Category: LITERARY OPERAS 
Clue: Operas based on this author's works include "Il Talismano", "Il Templario" & "La Prigione d'Edimburgo"
sir walter scott

Category: THE EARLY 1900s 
Clue: These 2 nations fought a war on neither nation's soil; the decisive battle came at present-day Shen-Yang
russia & japan

Category: SPACEFLIGHT 
Clue: He made 2 Gemini flights, 2 Apollo flights & 2 shuttle flights, including the first in 1981

john young