Teacher: 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.
Teacher: Now, understand the problem? If you are still confused, see the following 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
Solution: 3
Reason: Mansfield Building Society is a UK building society. Hence, option 3 is the correct answer

Now, solve this instance: Context: German submarine U-537 was a Type IXC/40 U-boat of Nazi Germany's Kriegsmarine built for service during World War II. Her keel was laid down on 10 April 1942 by Deutsche Werft in Hamburg. She was commissioned on 27 January 1943 with Kapitänleutnant Peter Schrewe in command.
Question: The document can be classified to which topic? 
Options: 1)EducationalInstitution, 2)Film, 3)Building, 4)Animal, 5)MeanOfTransportation
Student:
5