Given the 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. GSP Saturn - GSP Saturn is a semi-submersible jackup independent leg cantilever drilling rig operated by GSP Drilling a Grup Servicii Petroliere subsidiary and currently contracted by Wintershall Noordzee for drilling in the North Sea. The drilling unit is registered in Panama.
The answer is:
Mean Of Transportation