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.

[EX Q]: Context: Job Pierson (September 23 1791 April 9 1860) was a U.S. Representative from New York.
Question: The document can be classified to which topic?
Options: 1)OfficeHolder, 2)WrittenWork, 3)Company, 4)Athlete, 5)MeanOfTransportation
[EX A]: 1

[EX Q]: Context: USS L. Mendel Rivers (SSN-686) a Sturgeon-class attack submarine in commission from 1975 to 2001 is the only ship of the United States Navy thus far to have been named for L. Mendel Rivers (19051970) U.S. Representative from South Carolina's 1st Congressional District (19411970).
Question: The document can be classified to which topic?
Options: 1)Animal, 2)Film, 3)Building, 4)MeanOfTransportation, 5)Artist
[EX A]: 4

[EX Q]: Context: RegionsAir was a Part 121 regional airline. Its headquarters and maintenance base were located at the Smyrna Airport in Smyrna Tennessee USA. The hub airports for RegionsAir were Lambert-St. Louis International Airport (STL) and Cleveland Hopkins International Airport (CLE).RegionsAir operated under a code-sharing agreement with TWA and American Airlines to provide flights to communities as AmericanConnection from Lambert-St.
Question: The document can be classified to which topic?
Options: 1)Film, 2)EducationalInstitution, 3)Building, 4)Company, 5)OfficeHolder
[EX A]:
4