In this task, you are given a text which is the body of a document. You are given a question and options. Pick the correct number. Don't generate anything else apart from the numbers provided in options.

Context: The FS E.645 and E.646 are two classes of similar electric locomotives used on Italian railways. They were introduced during the 1950s and they have been retired in 2009.
Question: The document can be classified to which topic?
Options: 1)WrittenWork, 2)Athlete, 3)Plant, 4)MeanOfTransportation
4

Context: Badalan (Persian: also Romanized as Badalan) is a village in Firuraq Rural District in the Central District of Khoy County West Azerbaijan Province Iran. At the 2006 census its population was 569 in 110 families.
Question: The document can be classified to which topic?
Options: 1)WrittenWork, 2)OfficeHolder, 3)NaturalPlace, 4)Plant, 5)Village
5

Context: Robert DeLafayette Jeter Jr. (May 9 1937 November 20 2008) was an American football cornerback in the National Football League for the Green Bay Packers and the Chicago Bears. He was raised in Weirton WV where he attended the segregated local school Dunbar High School until after his junior year in 1954. He then attended Weir High School and was a football standout his senior year in the fall of 1955.
Question: The document can be classified to which topic?
Options: 1)Building, 2)Athlete, 3)WrittenWork, 4)EducationalInstitution
2