《新五代史·列传·唐臣传第十六》
张宪退下叹息说： 这是不祥之兆啊！ 
宪退而叹曰： 此不祥之兆也！ 
Zhang Xian sighed and said: This is an ominous sign!
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 宪退而叹曰： 此不祥之兆也！  [/INST] Zhang Xian sighed and said: This is an ominous sign!</s>
Identify the key themes in this Classical Chinese text and explain them in English: 宪退而叹曰： 此不祥之兆也！
user
Zhang Xian sighed and said: This is an ominous sign!
assistant