Original sentence: The establishment of the S&ED was announced on April 1, 2009 by President Barack Obama and President Hu Jintao.The upgraded mechanism will replace the former Senior Dialogue and Strategic Economic Dialogue started under the George W
Edited sentence: Bush administration.High-level representatives of both countries and their delegations will meet annually at capitals alternating between the two countries.President Barack Obama and Chinese President Hu Jintao.The creation of the S&ED was announced on April 1, 2009 in London at the G-20 summit by President Barack Obama and President Hu Jintao during their first meeting.The establishment of the S&ED was announced on April 1, 2009 by U.The first meeting was held in Washington, DC on July 27–28, 2009.The upgraded mechanism replaced the former Senior Dialogue and Strategic Economic Dialogue started under the George W