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: CLASSIC CHILDREN'S LIT 
Clue: This children's story begins with a young farm girl saying to her mother, "Where's Papa going with that ax?"
charlotte\'s web 

Category: WASHINGTON, D.C. 
Clue: The National Mall is bounded by these 2 avenues whose names recall historic documents

constitution & independence avenues