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:  Alexandra Tower is a residential tower located in the newly developed Princes Dock area of Liverpool England. It was constructed between 2005 and 2008 and upon completion became the sixth tallest building in Liverpool. The tower has a total 27 floors with 201 apartments reaching a height of 88 metres (290 ft).In March 2010 a 100 kilograms (220 lb) decorative glass panel shattered and fell from the building onto the ground below.

7