Task: Text Categorization
Input (English): Context: The Itapirapuã River is a river on the boundary between the Paraná and São Paulo states in southeastern Brazil.
Question: The document can be classified to which topic? 
Options: 1)Animal, 2)MeanOfTransportation, 3)OfficeHolder, 4)Athlete, 5)NaturalPlace
Output (English): 5