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.

Input: Consider Input: Context: Beijing mostly referred to as BJ is a diesel-hydraulic locomotive used in the People's Republic of China. It is named after the capital city of China Beijing.BJ were made in two different versions a standard version and a kou'an (port) version.
Question: The document can be classified to which topic?
Options: 1)OfficeHolder, 2)Film, 3)MeanOfTransportation, 4)Village, 5)Building

Output: 3

Input: Consider Input: Context: El Khoubna (also written El Khobna) is a village in the commune of Taibet in Taibet District Ouargla Province Algeria. The village is located 2.5 kilometres (1.6 mi) northeast of Taibet and 33 kilometres (21 mi) east of Touggourt.
Question: The document can be classified to which topic?
Options: 1)Animal, 2)Plant, 3)EducationalInstitution, 4)Village, 5)Athlete

Output: 4

Input: Consider Input: Context: The Boeing X-50A Dragonfly formerly known as the Canard Rotor/Wing Demonstrator was a gyrodyne unmanned aerial vehicle that was developed by Boeing and DARPA to demonstrate the principle that a helicopter's rotor could be stopped in flight and act as a fixed wing. The X-50A built upon the work of the Sikorsky S-72 X-Wing program of the 1980s by designing the vehicle as a multi-mode aircraft from the ground up.
Question: The document can be classified to which topic?
Options: 1)EducationalInstitution, 2)Building, 3)Film, 4)MeanOfTransportation, 5)Animal
Output: 4