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 Albion Aberdonian was an underfloor-engined bus designed and built by Albion Motors between 1957 and 1960 it was introduced as a longer derivative of the Albion Nimbus.The Aberdonian development code Nimbus-Six was designed to be the lightest full-size underfloor-engined bus available. Bodied examples would weigh half a ton less than the similarly powered Leyland Tiger Cub.

6