Please answer the following question: HMS Example is an Archer-class patrol and training vessel of the British Royal Navy based at HMS Calliope in Gateshead England. Example was originally built for the Royal Naval Auxiliary Service as the lead ship of the Example batch which was identical to the Archer class being built simultaneously for the Royal Navy. Example and her sisters were transferred to the Royal Navy when the RNXS disbanded in 1994. 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?
A:
Mean Of Transportation