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: Chionanthus callophylloides grows as a tree up to 13 metres (40 ft) tall with a trunk diameter of up to 25 centimetres (10 in). The bark is brown. Fruit is blue green ellipsoid up to 3 centimetres (1 in) long. Habitat is lowland mixed dipterocarp forest sometimes in swamps. C. callophylloides is endemic to Malaysian Borneo (Sabah and Sarawak).
Question: The document can be classified to which topic?
Options: 1)OfficeHolder, 2)NaturalPlace, 3)Animal, 4)Plant, 5)WrittenWork
Example Output: 4

Example Input: Context: The Piracuruca River is a river of Piaui state in northeastern Brazil.
Question: The document can be classified to which topic?
Options: 1)Building, 2)Animal, 3)NaturalPlace, 4)OfficeHolder, 5)WrittenWork
Example Output: 3

Example Input: Context: Guanella Pass (el. 3557 m./11669 ft.) is a high mountain pass in the Rocky Mountains of central Colorado US.The pass is located in southwestern Clear Creek County in the Front Range west of Denver and south of Georgetown. The pass was named for Byron Guanella in 1953.
Question: The document can be classified to which topic?
Options: 1)Animal, 2)NaturalPlace, 3)Artist, 4)EducationalInstitution
Example Output:
2