TASK DEFINITION: Compose a new way to ask the same question. The new question must be asking the exact same thing as the original question does. Without any other information, you should be able to tell that the original question and the new question are the same. Preserve bracketed phrases in your new question. You can change the rest of the question provided the above requirements are satisfied. The new question must have a natural, fluent formulation, as if it were composed by a native English speaker. You will be given three pieces of information to help you create better questions. Those are: "Answer": the answer to the question, e.g., "Honolulu". "Answer Type": the type of the answer, e.g., "Location". "Auxiliary Information" is a detailed description of some concepts mentioned in the question, if any.
PROBLEM: original question: What is the aviation incident of [Canadair North Star]?
answer: trans-canada air lines flight 810, stockport air disaster, 1956 boac canadair c4 argonaut accident
answer type: Aviation incident.
auxiliary information: The Canadair North Star was a 1940s Canadian development of the Douglas C-54 / DC-4 aircraft. Instead of radial piston engines found on the Douglas design, Canadair used Rolls-Royce Merlin engines to achieve a faster cruising speed. The prototype flew on 15 July 1946 and the type was used by various airlines and by the RCAF. It provided reliable, if noisy, service through the 1950s and into the 1960s. Some examples continued to fly into the 1970s, converted to cargo aircraft.

SOLUTION: [Canadair North Star] is what aviation incident?

PROBLEM: original question: How many bridges was opened on the date when [IllumiNations] was closed?
answer: 12
answer type: Bridge.
auxiliary information: IllumiNations was a series of nightly fireworks shows at Epcot before IllumiNations: Reflections of Earth was created in 1999 for the Millennium Celebration.

SOLUTION: When [IllumiNations] closed, how many bridges opened?

PROBLEM: original question: What opera character is also based on the same character as [Thor]?
answer: thor
answer type: Opera Character.
auxiliary information: Thor is a fictional superhero that appears in American comic books published by Marvel Comics. The character, based on the Norse mythological deity of the same name, is the Asgardian god of thunder and possesses the enchanted hammer Mjolnir, which grants him the ability of flight and weather manipulation amongst his other superhuman attributes. Debuting in the Silver Age of Comic Books, the character first appeared in Journey into Mystery #83 and was created by editor-plotter Stan Lee, scripter Larry Lieber, and penciller-plotter Jack Kirby. He has starred in several ongoing series and limited series, and is a founding member of the superhero team the Avengers, appearing in each volume of that series. The character has also appeared in associated Marvel merchandise including animated television series, clothing, toys, trading cards, video games, and movies. Chris Hemsworth portrays Thor in the Marvel Cinematic Universe films Thor, The Avengers, Thor: The Dark World and Avengers: Age of Ultron and will reprise his role in Thor: Ragnarok and both parts of Avengers: Infinity War.

SOLUTION:
What opera character is also based on the same character as [Thor]?