《明史·志·卷三十九》
演奏《天命有德舞曲》，第一曲，《万岁乐》：太平天子兴隆时，日初长，阳气返回福大吉。
奏《天命有德舞曲》，其一，《万岁乐》：太平天子兴隆日，履初长，阳回元吉。
Playing the "Celestial Mandate with Virtues Dance", the first piece, "Longevity Music": In the prosperous time of the peaceful emperor, the sun rises for a long time, the yang energy returns to great auspiciousness.
<s>[INST] Analyze the grammatical structure of the following Classical Chinese sentence and provide its English translation: 昔者先王，以为东作，日出而作，日落而息。 [/INST]
Grammatical analysis:
- Subject: 先王 (former kings)
- Verb: 以为 (considered)
- Object: 东作 (spring farming)
- Time expressions: 日出而作 (work at sunrise), 日落而息 (rest at sunset)

English translation: In the old days, the former kings considered that spring farming should start at sunrise and end at sunset.</s>
Analyze the grammatical structure of the following Classical Chinese sentence and provide its English translation: 昔者先王，以为东作，日出而作，日落而息。
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Grammatical analysis:
- Subject: 先王 (former kings)
- Verb: 以为 (considered)
- Object: 东作 (spring farming)
- Time expressions: 日出而作 (work at sunrise), 日落而息 (rest at sunset)

English translation: In the old days, the former kings considered that spring farming should start at sunrise and end at sunset.
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