Complex sentence: Traditional Wing Chun Kung Fu (TWC) is a style of the Chinese martial art Wing Chun established by William Cheung, which Cheung claims to be a more authentic and effective version of Wing Chun taught exclusively to him by Yip Man.
Split into simpler sentences: Traditional Wing Chun Kung Fu (TWC) is a style of the Chinese martial art Wing Chun. It is claimed to be the authentic, more effective version of Wing Chun taught exclusively to William Cheung by Yip Man.