《旧唐书·列传·卷三十七》
到官名改变，刘祎之为凤阁侍郎，代宰相之职。
及官名改易，祎之为凤阁侍郎、同凤阁鸾台三品。
When the official title changed, Liu Yizhi became Fengge Shilang, acting as prime minister.
<s>[INST] Explain the meaning of this Classical Chinese passage in English: 及官名改易，祎之为凤阁侍郎、同凤阁鸾台三品。 [/INST] When the official title changed, Liu Yizhi became Fengge Shilang, acting as prime minister.</s>
Explain the meaning of this Classical Chinese passage in English: 及官名改易，祎之为凤阁侍郎、同凤阁鸾台三品。
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When the official title changed, Liu Yizhi became Fengge Shilang, acting as prime minister.
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