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.
Input: original question: what Engine category has a Sub-categories that is the Category of [CFM International CFM56]?
answer: turbine, reaction engine
answer type: Engine category.
auxiliary information: The CFM International CFM56 series is a family of high-bypass turbofan aircraft engines made by CFM International, with a thrust range of 18,000 to 34,000 pounds-force. CFMI is a 50‚Äì50 joint-owned company of SNECMA, France and GE Aviation, United States. Both companies are responsible for producing components and each has its own final assembly line. GE produces the high-pressure compressor, combustor, and high-pressure turbine, and SNECMA manufactures the fan, gearbox, exhaust and the low-pressure turbine, and some components are made by Avio of Italy. The engines are assembled by GE in Evendale, Ohio, and by SNECMA in Villaroche in France. The completed engines are marketed by CFMI. The CFM56 first ran in 1974 and, despite initial export restrictions, is now one of the most common turbofan aircraft engines in the world, with more than 20,000 having been built in four major variants. It is most widely used on the Boeing 737 airliner and, under military designation F108, replaced the Pratt & Whitney JT3D engines on many KC-135 Stratotankers in the 1980s, creating the KC-135R variant of this aircraft. It is also the only engine used to power the Airbus A340-200 and 300 series.

The Category of [CFM International CFM56] has a sub-category of what Engine category?