Question: In what year was Professor Layton and the Eternal Diva and The Super Snail Adventure released in?
Sentence (from "Professor Layton and the Last Specter"): "Last Specter" is the fourth game in the "Professor Layton" series, and is a prequel that takes place three years before the first trilogy, detailing how Professor Layton met his apprentice, Luke Triton and introducing Layton's assistant Emmy Altava.
Relevant evidence: No