The Porte-class gate vessels were a class of boom defence vessel operated by the Royal Canadian Navy (RCN) and Canadian Forces (CF) during the Cold War.The class derived its name from the gates of the French fortifications of Québec and Louisbourg and was designed by the RCN as a replacement for World War I-era Battle class trawlers used to operate anti-submarine booms during World War II. The Porte-class were used primarily as training vessels during the Cold War. 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?
Mean Of Transportation

Robert Christian Knapp (born September 16 1953 in Cherry Point North Carolina) is a retired American professional baseball player. 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?
Athlete

Lucio Fontana (19 February 1899 – 7 September 1968) was an Italian painter sculptor and theorist of Argentine birth. He was mostly known as the founder of Spatialism and his ties to Arte Povera. 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?
