Task: Text Categorization
Input (English): Context: Beijing mostly referred to as BJ is a diesel-hydraulic locomotive used in the People's Republic of China. It is named after the capital city of China Beijing.BJ were made in two different versions a standard version and a kou'an (port) version.
Question: The document can be classified to which topic? 
Options: 1)OfficeHolder, 2)Film, 3)MeanOfTransportation, 4)Village, 5)Building
Output (English): 3