《明史·志·卷五十五》
灾重的，一石粮折七钱；灾稍轻的，一石粮仍折一两。
灾重者，石七钱，稍轻者，石仍一两。
Those with severe disaster, one stone grain 7 money; those with slightly lighter disaster, one stone grain still one tael.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 灾重者，石七钱，稍轻者，石仍一两。 [/INST] Those with severe disaster, one stone grain 7 money; those with slightly lighter disaster, one stone grain still one tael.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 灾重者，石七钱，稍轻者，石仍一两。
user
Those with severe disaster, one stone grain 7 money; those with slightly lighter disaster, one stone grain still one tael.
assistant