《辽史·列传·卷八》
保宁初，为北院枢密使，兼北府宰相，又命其子孙世代可任其职。
保宁初，为北院枢密使，兼北府宰相，仍命世预其选。
In the early Baoning era, he served as the privy envoy of Beiyuan, concurrently serving as the prime minister of Beifu, and his descendants were ordered to hold the positions from generation to generation.
<s>[INST] Translate the following Classical Chinese text into modern Chinese: 保宁初，为北院枢密使，兼北府宰相，仍命世预其选。 [/INST] 保宁初，为北院枢密使，兼北府宰相，又命其子孙世代可任其职。</s>
Translate the following Classical Chinese text into modern Chinese: 保宁初，为北院枢密使，兼北府宰相，仍命世预其选。
user
保宁初，为北院枢密使，兼北府宰相，又命其子孙世代可任其职。
assistant