Answer the following question: 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. NZR W class - The NZR W class consisted of two steam locomotives built at the Addington Railway Workshops in Christchurch New Zealand by the New Zealand Railways Department.Almost all subsequent tank locomotive classes built by NZR were classified as sub-classes of the W class e.g. WA WAB WB. The only exception was the Y class.
Answer:
Mean Of Transportation