Task: Text Categorization
Input (English): Context: The Meduncook River is a 7-mile-long (11 km) river in Knox County Maine. From its source (44°01′04″N 69°17′03″W) in Friendship the river runs about 1 mile south to the head of its estuary then about 6 miles southwest to Muscongus Bay. The estuary forms part of the border between Friendship and Cushing.
Question: The document can be classified to which topic? 
Options: 1)NaturalPlace, 2)Plant, 3)Athlete, 4)OfficeHolder, 5)Artist
Output (English): 1