yán / jiū / gǔ / dài / wén / xiàn / shí / tā / zhù / yì / dào / yǒu / xiē / zī / liào / xiě / zuò / páo / xī研究古代文献时,他注意到有些资料写作庖羲。While studying ancient texts, he noticed that some sources wrote the name as 庖羲.