of 吳 Wu . The Tʽang Shu adds 孫鎬 Sun Hao , and the Tʽung Chih 蕭吉 Hsiao Chi , while the Tʽu Shu mentions a Ming commentator, 黃潤玉 Huang Jun-yü . It is possible that some of these may have been merely collectors and editors of other commentaries, like Chi Tʽien-pao and Chi Hsieh