Answer the following question: SMS Schwalbe (His Majesty's Ship SchwalbeSwallow) was an unprotected cruiser built for the German Kaiserliche Marine (Imperial Navy) the lead ship of the Schwalbe class. She had one sister ship Sperber. Schwalbe was built at the Kaiserliche Werft (Imperial Dockyard) in Wilhelmshaven; her keel was laid down in April 1886 and her completed hull was launched in August 1887. She was commissioned for service in May 1888. 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?
Answer:
Mean Of Transportation