In this task, you are given a context paragraph, a question based on that and corresponding answer of a question. Your task is to generate supporting fact/knowledge from context paragraph which helps in answering a given question.

Abu Muslim Abd al-Rahman ibn Muslim al-Khorasani or al-Khurasani (Arabic: born 718-19 or 723-27, died in 755), born Vehzadan Pur-i Vandad Hormoz (Persian: ), was a Persian general in service of the Abbasid dynasty, who led the Abbasid Revolution that toppled the Umayyad dynasty. Question: Under which dynasty did this Persian general serve who used the Black Standard in his uprising leading to the Abbasid Revolution in 747? Answer: Abbasid dynasty
Abu Muslim Abd alRahman ibn Muslim alKhorasani or alKhurasani Arabic: born 71819 or 72327, died in 755, born Vehzadan Puri Vandad Hormoz Persian: , was a Persian general in service of the Abbasid dynasty, who led the Abbasid Revolution that toppled the Umayyad dynasty.