《左传·昭公·昭公七年》
十八日，齐景公住在虢地。
癸巳，齐侯次于虢。
On the 18th, the Duke of Jing, Qi, was in Guo. 
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 癸巳，齐侯次于虢。 [/INST] On the 18th, the Duke of Jing, Qi, was in Guo. </s>
Identify the key themes in this Classical Chinese text and explain them in English: 癸巳，齐侯次于虢。
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On the 18th, the Duke of Jing, Qi, was in Guo.
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