SS Volendam was a 15434 ton ocean liner operated by Holland America Line (Nederlandsch-Amerikaansche Stoomvaart Maatschappij). Built in 1922 by the Northern Irish firm of Harland & Wolff Ltd in Govan Glasgow a yard they acquired in 1912. Her sister ship TSS Veendam 15450 tons was built by Harland & Wolff the following year. 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?
A:
Mean Of Transportation