Given the question: SS Atlantus is the most famous of the twelve concrete ships built by the Liberty Ship Building Company in Brunswick Georgia during and after World War I.The steamer was launched on 5 December 1918 and was the second concrete ship constructed in the World War I Emergency Fleet. The war had ended a month earlier but the Atlantus was used to transport American troops back home from Europe and also to transport coal in New England. 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