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.

Let me give you an 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
The answer to this example can be: 3
Here is why: Mansfield Building Society is a UK building society. Hence, option 3 is the correct answer

OK. solve this:
Context: The Tramway Museum Graz is a transport museum in the Austrian city of Graz specialising in the history of the Graz tramway network. It is located in the former tram depot at the Mariatrost terminus of Graz tram route 1.The museum houses a collection of some 30 rail vehicles including motor trams trailers works cars horse cars and funicular cars.
Question: The document can be classified to which topic?
Options: 1)Album, 2)EducationalInstitution, 3)NaturalPlace, 4)Building, 5)WrittenWork
Answer:
4