Task: Text Categorization
Input (English): Context: Lake Apanás is a reservoir located in the north of Nicaragua. It is created by Mancotal Dam on the Río Tuma to the north of Jinotega. The reservoir has an area of 51 square kilometers.It is a source of much of nation's hydropower for the Centro América Plant.
Question: The document can be classified to which topic? 
Options: 1)Animal, 2)Athlete, 3)EducationalInstitution, 4)MeanOfTransportation, 5)NaturalPlace
Output (English): 5