Task: Explanation
Input (English): Abu Muslim Abd al-Rahman ibn Muslim al-Khorasani or al-Khurasani (Arabic: أبو مسلم عبد الرحمن بن مسلم الخراساني‎ ‎ born 718-19 or 723-27, died in 755), born Vehzādān Pūr-i Vandād Hormoz (Persian: وهزادان پور ونداد هرمزد‎ ‎ ), 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
Output (English): Abu Muslim Abd alRahman ibn Muslim alKhorasani or alKhurasani Arabic: أبو مسلم عبد الرحمن بن مسلم الخراساني‎ ‎ born 71819 or 72327, died in 755, born Vehzādān Pūri Vandād Hormoz Persian: وهزادان پور ونداد هرمزد‎ ‎ , was a Persian general in service of the Abbasid dynasty, who led the Abbasid Revolution that toppled the Umayyad dynasty.