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:  USNS Capt. Arlo L. Olson (T-AK-245) was an Alamosa-class cargo ship that was constructed for the United States Navy during the closing period of World War II. However the war ended and she was transferred to the U.S. Army as USAT Capt. Arlo L. Olson in 1946 who kept her in service until transferred to the U.S. Navy in 1950.

6