Literature Reference: 罘罳晓唱鸡人，三牲八簋斯陈。——《郊庙歌辞 汉宗庙乐舞辞 章庆舞》 At dawn, the rooster crows at the palace screens, and offerings of three animals and eight vessels are arranged. Source from 'Jiao Miao Ge Ci: Han Zong Miao Le Wu Ci: Zhang Qing Wu'.