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.

[Q]: original question: How many musical albums are there of the type [Compilation album]?
answer: 223480
answer type: Musical Album.
auxiliary information: A compilation album is an album featuring tracks from one or more performers, often culled from a variety of sources The tracks are usually collected according to a common characteristic, such as popularity, genre, source or subject matter. When the tracks are all essentially by the same recording artist, a compilation album is often referred to as a retrospective album. Compilation albums may employ traditional product bundling strategies.
[A]: How many of [Compilation album] are there?

[Q]: original question: What is the hull material of [HMS Prince of Wales]?
answer: steel
answer type: Hull material.
auxiliary information: HMS Prince of Wales was a King George V-class battleship of the Royal Navy, built at the Cammell Laird shipyard in Birkenhead, England. She was involved in several key actions of the Second World War, including the battle of Denmark Strait against the German battleship Bismarck, operations escorting convoys in the Mediterranean, and her final action and sinking in the Pacific in 1941. Prince of Wales first encountered the Germans while being outfitted in her drydock, being attacked and damaged by German aircraft. She was heavily involved in the first contact with the German battleship Bismarck and the cruiser Prinz Eugen, and landed 3 hits on Bismarck including two critical hits, one which caused extensive flooding forward, and another which exploded under Bismarck's armour belt causing machinery damage, the combined effect of both hits caused her to make the ill-fated decision to return to port. Prince of Wales suffered heavy damage during the engagement and had to return to Rosyth to be repaired. Prince of Wales transported Prime Minister Winston Churchill to the Newfoundland Conference with US President Franklin D. Roosevelt.
[A]: What is the hull of the [HMS Prince of Wales] made of?

[Q]: original question: Which conference series belongs to the same conference event as [Moscone Center]?
answer: google i/o
answer type: Conference series.
auxiliary information: Moscone Center is the largest convention and exhibition complex in San Francisco, California. It comprises three main halls: Two underground halls underneath Yerba Buena Gardens, known as Moscone North and Moscone South, and a three-level Moscone West exhibition hall across 4th Street. It was initially built in 1981 by architects Hellmuth, Obata & Kassabaum as one single hall, Moscone South, and named after San Francisco former mayor George Moscone, who was assassinated in November 1978.
[A]:
Which conference series belongs to the same conference event as [Moscone Center]?