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:  Helicina platychila is a species of tropical land snail with an operculum a terrestrial gastropod mollusk in the family Helicinidae.The description of Helicina epistilia Guppy 1868 matches this species and these names are therefore considered synonyms.

10