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.

[EX Q]: Context: The Ciobu River is a tributary of the Teleajen River in Romania.
Question: The document can be classified to which topic? 
Options: 1)NaturalPlace, 2)Artist, 3)EducationalInstitution, 4)Film, 5)WrittenWork
[EX A]: 1

[EX Q]: Context: Run for Your Life (also known as Marathon) is a 1988 Italian-British sport-drama film. It is the last film directed by Terence Young. It was filmed in Rome; during the filming Carradine married his third wife Gail Jensen.
Question: The document can be classified to which topic? 
Options: 1)Village, 2)Plant, 3)Athlete, 4)Building, 5)Film
[EX A]: 5

[EX Q]: Context: Ocoee Dam Number 2 is a hydroelectric dam on the Ocoee River in Polk County in the U.S. state of Tennessee. The dam impounds the Ocoee No. 2 Reservoir and is one of four dams on the Toccoa/Ocoee River owned and operated by the Tennessee Valley Authority. Ocoee Dam No. 2— which was completed in 1913— is perhaps most notable for its design which utilizes a wooden flume that carries water from the reservoir down the side of the Ocoee Gorge to the dam's powerhouse 5 miles (8.0 km) downstream.
Question: The document can be classified to which topic? 
Options: 1)Animal, 2)Artist, 3)Building, 4)MeanOfTransportation, 5)Film
[EX A]:
3