 Complete the following phrase:  In June 2016, JR East announced plans to rebuild the station ahead of the 2020 Olympics in order to alleviate overcrowding. A new station building was to be built by JR East at the stations Meiji-Jingu entrance. A temporary platform used during busy periods will become the permanent platform for trains heading north through the station. The new station building and platform opened on 21 March 2020, in time for the Tokyo Olympics and 