Q: 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.
Text: Angissoq LORAN-C transmitter was a LORAN-C transmitter at Nanortalik-Angissoq Greenland of GRI 7930 5959'18N 4510'24 W (595918N 451024W). Angissoq LORAN-C transmitter had a transmission power of 1000 kilowatts.It used until July 27 1964 a 1350 ft (411.48 metre) tall mast radiator which was built in 1963. On July 27 1964 this tower collapsed as a result of a fatigue failure of an eyebolt head in a compression cone insulator on a structural guy.
A:
7