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:  Mount Diablo is a mountain in Contra Costa County California in the San Francisco Bay Area located south of Clayton and northeast of Danville. It is an isolated upthrust peak of 3864 feet (1178 m) visible from most of the San Francisco Bay Area and much of northern California.

8