Original sentence: Amongst Jiu Wan's known students are Ti Lung (Tam Fu-Wing), Chow Hung-Yuen,  Jason Lau, Francis Fong and others.Jiu Wan (招允; pinyin: Zhāo Yǔn) first taught Wing Chun at Jing Mo Gwun, a school in Foshan, China.Jiu Wan's relationship with Yip Man is controversial among his students.Some 1 claim he was not a student of Yip Man's and just a close friend, others 2 3 claim that he did indeed study with Yip Man.When the Communists took over China, he moved to Hong Kong where he continued to teach
Edited sentence: 1  Jiu Wan's training began with Chan Wa Shun, from there becoming close friends with Yip Man, earning his trust and respect.Jiu Wan (招允; pinyin: Zhāo Yǔn) opened his first school in Jing Mo Gwun, in Foshan, China, during the times when Communists took over China.Jiu Wan's whereabouts became controversial.Later relocating to Hong Kong and began teaching there as well.Often others make claims  3, 4 different ideas