Task: Text Categorization
Input (English): Context: Kora-Class corvettes are 1350-ton guided-missile corvettes in active service with the Indian Navy. Four vessels were built at Garden Reach Shipbuilders and Engineers (GRSE) and outfitted at Mazagon Dock Limited (MDL).
Question: The document can be classified to which topic? 
Options: 1)Plant, 2)OfficeHolder, 3)NaturalPlace, 4)MeanOfTransportation
Output (English): 4