Q: In this task, you are given a text which is the body of a document. Your job is to classify the topic of the document into these categories: 1)Company, 2)Educational Institution, 3)Artist, 4)Athlete, 5)Office Holder, 6)Mean of transportation, 7)Building, 8)Natural place, 9)Village, 10)Animal, 11)Plant, 12)Album, 13)Film, 14)Written work. Your output should be the category number. Don't generate anything apart from numbers 1-14.
Text: The South Branch Sandy River is a short tributary of the Sandy River in Franklin County Maine. From its source (444620N 702841W) on Blueberry Mountain in Berlin (Township 6 north of Weld) the river runs 7.4 miles (11.9 km) northeast to its confluence with the Sandy River in Phillips.
A:
8