sentences:  Later in Tang history, after the Anshi Rebellion, while the chancellor-de facto designation was not officially abolished, it was no longer in use, as the last chancellor to be designated as such was Li Lin, in 757–758, and the chancellor-de facto-of-second-grade designation became very common and was used for the rest of Tang history.Furthermore, after 705, the heads of the executive bureau were no longer considered chancellors unless they received the chancellor-de facto designation of either kind.Throughout the early dynasty until the second reign of Emperor Ruizong in 710, variations of the "Canyu Chaozheng" also continued appearing, including "Canzhi Jiwu" (參知機務, literally "participator in important matters"), "Canzhang Jimi" (參掌機密, literally "participator in national secret matters"), "Canzhi Zhengshi" (參知政事, literally "participator in governance matters"), "Canmou Zhengshi" (參謀政事, similarly in meaning to "Canzhi Zhengshi") also appeared, which Bo rendered as "chancellors de facto of the third class."