《资治通鉴·唐纪·唐纪二十一》
姚是姚思廉的孙子；李元素是李敬玄的弟弟。
璹，思廉之孙；元素，敬玄之弟也。
Yao was the grandson of Yao Sili; Li Yuan Su was the brother of Li Jingxuan.
<s>[INST] Rewrite the following English passage in the style of Classical Chinese: Yao was the grandson of Yao Sili; Li Yuan Su was the brother of Li Jingxuan. [/INST] 璹，思廉之孙；元素，敬玄之弟也。</s>
Rewrite the following English passage in the style of Classical Chinese: Yao was the grandson of Yao Sili; Li Yuan Su was the brother of Li Jingxuan.
user
璹，思廉之孙；元素，敬玄之弟也。
assistant