Task: Text Categorization
Input (English): Context: The Rhaetian Railway Ge 6/6 II is a class of heavy metre gauge electric locomotives operated by the Rhaetian Railway (RhB) which is the main railway network in the Canton of Graubünden Switzerland.The class is so named because it was the second class of locomotives of the Swiss locomotive and railcar classification type Ge 6/6 to be acquired by the Rhaetian Railway.
Question: The document can be classified to which topic? 
Options: 1)Village, 2)NaturalPlace, 3)MeanOfTransportation, 4)WrittenWork, 5)Album
Output (English): 3