Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. HMAS Swan (D61) -  HMAS Swan was a River-class torpedo-boat destroyer of the Royal Australian Navy (RAN). One of six built for the RAN Swan was built at Cockatoo Island Dockyard and entered service in 1916. The early part of the ship's career was spent on blockade duty in the Far East before she was transferred to the Mediterranean for anti-submarine duty. Apart from performing shore bombardment during the Second Battle of Durazzo Swan's wartime career was uneventful.
Answer:
Mean Of Transportation