Task: Text Categorization
Input (English): Context: OPK Oboronprom (Russian: ОПК Оборонпром) is a Russian aerospace holding company. The company is involved in helicopter production engine production air-defenсe systems complex radio-electronic systems and leasing. Russian Helicopters Oboronprom’s helicopter manufacturing group is the leading Russian designer and manufacturer of rotary-wing aircraft equipment.
Question: The document can be classified to which topic? 
Options: 1)WrittenWork, 2)Film, 3)Company, 4)Artist, 5)NaturalPlace
Output (English): 3