original_query: What was the final score of Ng's match against So Man Yan?
query: What was the final score of Ng On Yee's match against So Man Yan?
answer: The provided text mentions several matches between Ng On Yee and So Man Yan, with different scores.  One match in the 2019 Australian Women's Open ended 4-1 in Ng's favor, and another in the 2017 Paul Hunter Women's Classic ended 4-3 in Ng's favor.