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 Saline River is an 80-mile-long (130 km) tributary of the Little River in southwestern Arkansas in the United States. Via the Little and Red rivers it is part of the watershed of the Mississippi River.It rises in the Ouachita Mountains in southeastern Polk County in the Ouachita National Forest and flows generally south through Howard County and along Howard County's boundary with Sevier County through Dierks Lake which is formed by a U.S. Army Corps of Engineers dam.

8