Task: Text Categorization
Input (English): Context: The Tana River (Finnish: Teno or Tenojoki; Northern Sami: Deatnu; Norwegian: Tanaelva; Swedish: Tana älv) is a 361 kilometres (224 mi) long river in Sápmi area of northern Scandinavia. The river flows through Finnmark county Norway and the Lapland region of Finland. The Sámi name means Great River. The main tributaries of Tana are Anarjohka and Karasjohka.
Question: The document can be classified to which topic? 
Options: 1)Athlete, 2)Company, 3)OfficeHolder, 4)NaturalPlace, 5)Village
Output (English): 4