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.

original question: Find electric system whose locomotive class is [SBB-CFF-FFS Re 420].
answer: 15 kv ac railway electrification
answer type: Electric system.
auxiliary information: The Re 420, originally Re 4/4·¥µ·¥µ, series are the most common electric locomotives of the Swiss Federal Railways. They are used for passenger services throughout Switzerland alone or in pairs. For freight services, they are sometimes paired with the Re 620, especially in mountainous regions. That pairing is referred to by the term Re 10/10. The Re 430, originally known as the Re 4/4·¥µ·¥µ·¥µ, are a derivative of the Re 420 modified for higher traction but lower speed. The Re 420 locomotives were produced over a period of 21 years, from 1964 to 1985. Re 4/4·¥µ·¥µ·¥µ Subseries:·¥µ·¥µ·¥µ When S√ºdostbahn had the opportunity to buy one of the first batch of 50 Re 4/4·¥µ·¥µ locomotives before delivery, it had the gear modified for higher traction and lower speed for the steep routes of the SOB. This locomotive was delivered as number 41. Based on the SOB experience, the SBB ordered a batch of 20 Re 4/4·¥µ·¥µ·¥µ in 1969 for use on the Gotthard route
Which electric system has locomotive system [SBB-CFF-FFS Re 420]?

original question: Which amusement park has the ride [Runoff Rapids]?
answer: disney's blizzard beach
answer type: Amusement Park.
The [Runoff Rapids] ride is located at which amusement park?

original question: Which division has [Pittsburgh Pirates]
answer: national league central
answer type: Baseball Division.
auxiliary information: The Pittsburgh Pirates are an American professional baseball team based in Pittsburgh, Pennsylvania, that competes in Major League Baseball. They are organized in the Central Division of the National League, and play their home games at PNC Park; the Pirates previously played at Forbes Field and Three Rivers Stadium, the latter of which was named after its location near the confluence of the Allegheny, Monongahela, the Ohio Rivers. Founded on October 15, 1881 as Allegheny, the franchise has won five World Series championships. The Pirates are also often referred to as the "Bucs" or the "Buccos". The franchise joined the NL in its eighth season in 1887 and was competitive from its early years, winning three NL titles from 1901 to 1903, playing in the very first World Series in 1903 and winning their first World Series in 1909 behind Honus Wagner. The Pirates have had many ups and downs during their long history, most famously winning the 1960 World Series against the New York Yankees on a game-winning home run by Bill Mazeroski, the only time that Game 7 of the World Series has ever ended with a home run, still to this day.

The [Pittsburgh Pirates] are in what MLB division?