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.

Example Input: Context: Papilio epenetus is a species of swallowtail butterfly from the genus Papilio that is found in Ecuador.
Question: The document can be classified to which topic? 
Options: 1)Plant, 2)EducationalInstitution, 3)Animal, 4)OfficeHolder, 5)Athlete
Example Output: 3

Example Input: Context: The S class was an express passenger steam locomotive that ran on Victorian Railways Australia from 1928 to 1954. Built when the VR was at its zenith and assigned to haul the broad gauge-leg of its Melbourne to Sydney interstate express passenger services the S class remained the VR's most prestigious locomotive class until the advent of diesel electric locomotives in the early 1950s.They were the first Pacific-type locomotives on the VR as well as its first 3-cylinder locomotive type.
Question: The document can be classified to which topic? 
Options: 1)Film, 2)MeanOfTransportation, 3)Company, 4)Album, 5)Plant
Example Output: 2

Example Input: Context: The Cook River / Weheka is in the South Island of New Zealand. The headwaters are from the La Perouse Glacier on the western flanks of the Southern Alps and it flows west then northeast then northwest and into the Tasman Sea. Its tributaries include the Balfour River fed by the Balfour Glacier and the Fox River fed by the Fox Glacier.
Question: The document can be classified to which topic? 
Options: 1)EducationalInstitution, 2)WrittenWork, 3)NaturalPlace, 4)Album
Example Output:
3