sentences:  Built by Vickers Limited, "Centaur" was laid down in January 1915 and launched on 1 January 1916.Upon being commissioned into the Royal Navy in August 1916, "Centaur" was assigned to the 5th Light Cruiser Squadron, which operated as a part of Harwich Force in the North Sea to defend the eastern approaches to the Strait of Dover and English Channel.On 5 June 1917 she and the light cruisers and sank the German torpedo boat "S20" in the North Sea near the Schouwen Bank off Zeebrugge, Belgium.