Definition: 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.
Input: Text:  The River Finn (Irish: Abhainn na Finne) is a river that flows through County Donegal in the Republic of Ireland and County Tyrone in Northern Ireland. It rises in Lough Finn in County Donegal and flows east through a deep mountain valley to Ballybofey and Stranorlar (on opposite sides of the river) and on to the confluence with the River Mourne at Lifford. From Castlefin downstream the river is tidal becoming deeper towards Strabane.

8