《元史·本纪·卷十三》
增加济州漕运的船只三千艘，船夫一万二千人。
增济州漕舟三千艘，役夫万二千人。
Three thousand ships and twelve thousand sailors were added to the Jeju Canal.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 增济州漕舟三千艘，役夫万二千人。 [/INST] Three thousand ships and twelve thousand sailors were added to the Jeju Canal.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 增济州漕舟三千艘，役夫万二千人。
user
Three thousand ships and twelve thousand sailors were added to the Jeju Canal.
assistant