《明史·志·卷五十九》
派遣官吏堵塞黄河决口，免征受灾百姓租税。
遣官塞河，蠲被灾租税。
Officials were dispatched to block the breach, and taxes were exempted for the affected people.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 遣官塞河，蠲被灾租税。 [/INST] Officials were dispatched to block the breach, and taxes were exempted for the affected people.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 遣官塞河，蠲被灾租税。
user
Officials were dispatched to block the breach, and taxes were exempted for the affected people.
assistant