Q:SF Ammonia - SF Ammonia is a steam powered railway ferry on Tinnsj that connected Rjukanbanen with Tinnosbanen Norway. The ferry was one of the four railway ferries on Tinnsj that was used by Norsk Hydro to transport chemicals from Rjukan to the port in Skien. The ferry is one of four remaining steam powered railway ferry in the world and can still be seen docked at Ml. Given a choice of categories company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, the text refers to which one?
A:
Mean Of Transportation