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:  Marstonia agarhecta common name Ocmulgee marstonia is a species of freshwater snail with a gill and an operculum aquatic gastropod mollusk in the family Hydrobiidae.This species is endemic to Georgia the United States. Its natural habitat is rivers. It is threatened by habitat loss.

10