Task: Text Categorization
Input (English): Context: The Senegal River (French: Fleuve Sénégal) is a 1790 km (1110 mi) long river in West Africa that forms the border between Senegal and Mauritania.
Question: The document can be classified to which topic? 
Options: 1)Company, 2)NaturalPlace, 3)EducationalInstitution, 4)Artist, 5)Animal
Output (English): 2