Question: Lim Gan was well known for his comic roles in a film series based on the exploits of a Cantonese martial artist who was considered an expert in what style?
{'answer': 'Hung Ga', 'supporting_facts': [['Sai Gwa-Pau', 0], ['Sai Gwa-Pau', 2], ['Wong Fei-hung', 0], ['Wong Fei-hung', 1]]}