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 XN5N was a prototype United States monoplane trainer aircraft produced by the Naval Aircraft Factory in Philadelphia Pennsylvania in 1941. A single prototype was built and evaluated.The type was not placed in production.
Question: The document can be classified to which topic? 
Options: 1)NaturalPlace, 2)Company, 3)Film, 4)MeanOfTransportation, 5)Athlete
4

Context: O'Farrell Community School or O'Farrell Middle (CDE official name) commonly referred to as O'Farrell is a charter school in the Southeast San Diego neighborhood of Encanto serving grades 6-9 in the K-12 American education system. The school opened its doors in the San Diego Unified School District in 1959 with its name chosen in 1957 as Mabel E. O'Farrell Jr. High. It was voted to become a charter school in 1994.
Question: The document can be classified to which topic? 
Options: 1)Plant, 2)Athlete, 3)Village, 4)EducationalInstitution, 5)Album
4

Context: Mequon Town Hall and Fire Station Complex is an Art Deco building complex in Mequon Wisconsin United States that was built in 1937. It was listed on the National Register of Historic Places in 2000.Built as a town hall in 1937 the building functioned as the city hall when Mequon incorporated in 1957. The fire department moved in the 1980s to the nearby Mequon Safety Building on at the intersection of Mequon Road and Buntrock Avenue.
Question: The document can be classified to which topic? 
Options: 1)OfficeHolder, 2)Artist, 3)Album, 4)Building, 5)Village

4