 Complete the following phrase:  Centurion ran aground on a sandbank at Shimonoseki, Japan in June 1896, but was not damaged. Captain John Jellicoe the future First Sea Lord assumed command of the ship on 12 February 1898. A week later, Vice-Admiral Sir Edward Seymour hoisted his flag aboard her. During the Boxer Rebellion, she contributed men to Seymours expedition that attempted and failed to relieve the 