LED 生成語義不明句子，例如“data mining is an important content of data mining.”“the results provide us with a basis to judge whether the sub-time series of time series with increasing and decreasing is the sub-time series with great increasing and decreasing.” 這些句子讓人難以理解，通常涉及語法錯(cuò)誤。模型處理長文檔時(shí)的遠(yuǎn)程依賴性問題是造成這個(gè)錯(cuò)誤的原因之一。此外，這個(gè)錯(cuò)誤也暴露了當(dāng)前生成模型在生成長文本方面的不足。