Task: Text Categorization
Input (English): Context: The Șerbota River is a headwater of the Porumbacu River in Romania. Some cartographers consider that this is the upper reach of the Porumbacu River.
Question: The document can be classified to which topic? 
Options: 1)MeanOfTransportation, 2)NaturalPlace, 3)Album, 4)Village
Output (English): 2