Task: Text Categorization
Input (English): Context: The Antonov An-2 (Russian nickname: Annushka or Annie) is a Soviet mass-produced single-engine biplane utility/agricultural aircraft designed and manufactured by the Antonov Design Bureau (now State Company) since 1946. (USAF/DoD reporting name Type 22 NATO reporting name Colt.)
Question: The document can be classified to which topic? 
Options: 1)Plant, 2)MeanOfTransportation, 3)NaturalPlace, 4)Athlete
Output (English): 2