《辽史·列传·卷二十一》
不久去世，年五十五岁。
卒，年五十五。
He died soon after, aged fifty-five.
<s>[INST] Kindly elucidate the central themes in this passage in English: 卒，年五十五。 [/INST] He died soon after, aged fifty-five.</s>
Kindly elucidate the central themes in this passage in English: 卒，年五十五。
user
He died soon after, aged fifty-five.
assistant