Complex sentence: The origins of the Kwong Sai Jook Lum system is controversial with some Chu Gar proponents claiming a relationship also to Lau Shui; however, those claims have since been refuted.
Split into simpler sentences: The origins of the Kwong Sai Jook Lum system is controversial with some Chu Gar proponents claiming a relationship also to Lau Shui. However, those claims have since been refuted.