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:  Castle Lake is a glacial tarn in the Ruby Mountains in Elko County in the northeastern part of the state of Nevada. It is located on a shelf near the head of Kleckner Canyon at approximately 40°34.1′N 115°23.9′W and at an elevation of 9780 feet (2980 m). It has an area of approximately 14 acres (57000 m2) and a depth of up to 15 feet (4.6 m).

8