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 Postojna Gate (Slovene: Postojnska vrata) also Adriatic Gate and Italo-Illyrian Gate is a major mountain pass of the Dinaric Alps. Located in Slovenia the pass's approximately 30-kilometre (19 mi) wide saddle allows for the lowest crossing of the Dinaric Alps at an elevation of 606 metres (1988 ft) and a second higher crossing at the Hrušica plateau. It is bordered to the south by the Javornik Hills (Javorniki) and to the north by the Trnovo Forest.

8