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 Mashpee River is a 4.8-mile-long (7.7 km) tidal river on Cape Cod in Mashpee Massachusetts.The river arises in Mashpee and Wakeby Ponds flows south a short distance and drains into Pirate's Cove on Popponesset Bay on the Nantucket Sound. Conservation efforts began in 1915 or earlier and much of the surrounding region is now part of the Mashpee River Reservation owned and conserved by the nonprofit Trustees of Reservations.

8