Task: Text Categorization
Input (English): Context: HMS Porcupine was a P-class destroyer built by Vickers Armstrong on the River Tyne. She was ordered on 20 October 1939 laid down on 26 December 1939 and launched on 10 June 1941. She was commissioned on 31 August 1942 but had a relatively short active career. She was torpedoed in 1942 but salvaged and not finally broken up until 1947.
Question: The document can be classified to which topic? 
Options: 1)WrittenWork, 2)Building, 3)MeanOfTransportation, 4)Artist, 5)Plant
Output (English): 3