Task: Text Categorization
Input (English): Context: The Hafner Rotabuggy (formally known as the Malcolm Rotaplane) and as the M.L. 10/42 Flying Jeep was a British experimental aircraft that was essentially a Willys MB combined with a rotor kite developed with the intention of producing a way of air-dropping off-road vehicles.
Question: The document can be classified to which topic? 
Options: 1)Building, 2)OfficeHolder, 3)NaturalPlace, 4)Athlete, 5)MeanOfTransportation
Output (English): 5