Definition: 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: Context: The Type 071 (Yuzhao-class) are amphibious warfare ships of the People's Republic of China's People's Liberation Army Navy. They are built by the Shanghai-based Hudong-Zhonghua Shipyard and the first entered service in late-2007.
Question: The document can be classified to which topic?
Options: 1)EducationalInstitution, 2)NaturalPlace, 3)MeanOfTransportation, 4)Athlete
Output:
3