《后汉书·本纪·光武帝纪下》
五月十一日，光武帝下诏说： 从前契作司徒，禹作司空，都没有 大 字，今命令两府去掉 大 字。 
五月丁丑，诏曰： 昔契作司徒，禹作司空，皆无 大 名，其令二府去 大 。 又改大司马为太尉。
On the 11th day of the 5th lunar month, Emperor Guangwu issued an imperial decree: In the past, the titles of Minister of the Interior and Minister of Works did not carry the title "Grand", therefore, I now command that all "Grand" titles be removed.
<s>[INST] Convert the following English text into Classical Chinese: On the 11th day of the 5th lunar month, Emperor Guangwu issued an imperial decree: In the past, the titles of Minister of the Interior and Minister of Works did not carry the title "Grand", therefore, I now command that all "Grand" titles be removed. [/INST] 五月丁丑，诏曰： 昔契作司徒，禹作司空，皆无 大 名，其令二府去 大 。 又改大司马为太尉。</s>
Convert the following English text into Classical Chinese: On the 11th day of the 5th lunar month, Emperor Guangwu issued an imperial decree: In the past, the titles of Minister of the Interior and Minister of Works did not carry the title "Grand", therefore, I now command that all "Grand" titles be removed.
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五月丁丑，诏曰： 昔契作司徒，禹作司空，皆无 大 名，其令二府去 大 。 又改大司马为太尉。
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