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 Langley Aerodrome was a pioneering but unsuccessful manned powered flying machine designed at the close of the 19th century by Smithsonian Institution Secretary Samuel Langley. The U.S. Army paid $50000 for the project in 1898 after Langley's successful flights with small-scale unmanned models two years earlier.

6