Given the question: HMS Thorough was a British submarine of the third group of the T class. She was built as P324 by Vickers Armstrong Barrow and launched on 30 October 1943. So far she has been the only ship of the Royal Navy to bear the name Thorough. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
The answer is:
Mean Of Transportation