Please answer the following question: The Jaskoka class was a class of 6 minesweepers of Polish Navy built during the 30's. They were the first sea going warships of Polish production. The Jaskoka class was a versatile design which allowed the ships to serve in the role of either a minesweeper small minelayer or a sub chaser. All were named after birds therefore the class was nicknamed: ptaszki (birdies) in Polish. 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