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: 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
[EX A]: 4

[EX Q]: Context: The Cutler River is a stream located in the White Mountains of New Hampshire in the United States. Approximately 1.8 miles (2.9 km) in length it is a tributary of the Ellis River – a part of the Saco River watershed flowing to the Atlantic Ocean in Maine.The river rises as two branches on the eastern slopes of Mount Washington the highest peak in the northeastern United States. The western branch identified as the main stem by some sources begins in Tuckerman Ravine.
Question: The document can be classified to which topic? 
Options: 1)Company, 2)MeanOfTransportation, 3)Plant, 4)NaturalPlace, 5)OfficeHolder
[EX A]: 4

[EX Q]: Context: State of Wonder (2011) is a novel by American author Ann Patchett. It is about a drug company employee who journeys to Brazil to bring back information about seemingly miraculous drug research being conducted there by Dr. Swenson on behalf of the company.
Question: The document can be classified to which topic? 
Options: 1)WrittenWork, 2)Album, 3)Athlete, 4)OfficeHolder, 5)Animal
[EX A]:
1