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: Photographs is an album by Patrick Sky released in 1969.
Question: The document can be classified to which topic? 
Options: 1)Building, 2)Artist, 3)EducationalInstitution, 4)Album, 5)Village
4

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: So Far So Good is a compilation album with selected tracks taken from the John Martyn album's Bless The Weather Solid Air and Sunday's Child.
Question: The document can be classified to which topic? 
Options: 1)Film, 2)Animal, 3)Artist, 4)EducationalInstitution, 5)Album

5