Given the task definition, example input & output, solve the new input case.
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: Text: The Mansfield Building Society is a UK building society which has its headquarters in Mansfield Nottinghamshire. It is a member of the Building Societies Association. 
Question: The document can be classified to which topic? Options: 1)Animal, 2)Plant, 3)Building, 4)Company, 5)WrittenWork
Output: 3
Mansfield Building Society is a UK building society. Hence, option 3 is the correct answer

New input case for you: Context: The Lauter is a right tributary of the Neckar and arises on the Albtrauf escarpment of the Swabian Alb.
Question: The document can be classified to which topic? 
Options: 1)WrittenWork, 2)Building, 3)NaturalPlace, 4)OfficeHolder, 5)Village
Output:
3