BEIJING, CHINA - OCTOBER 20: Philippine President Rodrigo Duterte, right is shown the way by Chinese President Xi Jinping before a signing ceremony on October 20, 2016 in Beijing, China. Philippine president Rodrigo Duterte is on a four-day state visit to China, his first since taking power in late June, with the aim of improving bilaterial relations.  (Photo by Ng Han Guan-Pool/Getty Images)