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: Which ship type is of class [Fairmile D motor torpedo boat]?
answer: motor torpedo boat
answer type: Ship type.
auxiliary information: The Fairmile D motor torpedo boat was a type of British Motor Torpedo Boat designed by Bill Holt and conceived by Fairmile Marine for the Royal Navy. Nicknamed "Dog Boats", they were designed to combat the known advantages of the German E-boats over previous British coastal craft designs. They were bigger than earlier MTB or Motor Gun Boat designs but slower, at 30 knots compared to 40 knots. Unlike the Fairmile B designs, the Dog Boats were only produced in component form in Britain. Some were built for the RAF's Marine Branch for use in the long range air-sea rescue for downed airmen. 229 boats were built between 1942 and 1945. Many versions were produced or converted from existing boats; MGB, MTB, MA/SB, LRRC and post-war FPB. Since the Fairmile D could be fitted out with a mix of armament that gave it the capabilities of both a Motor Gun Boat and a Motor Torpedo boat, the MGB designation was dropped. Today the D-type is a popular choice among boat modelers. There are no known survivors, other than two abandoned wrecks, one in Chatham, England and the other in Ellings√∏y, Norway. Molins 57-mm gun mounted on a Fairmile D Back view of the same gun

[Fairmile D motor torpedo boat] classifies what type of ship?