Task: Question Generation
Input (English): On August 19, 1989, the Russian Orthodox Parish of Saints Peter and Paul announced it would be switching to the Ukrainian Autocephalous Orthodox Church. On September 2, 1989, tens of thousands across Ukraine protested a draft election law that reserved special seats for the Communist Party and for other official organizations: 50,000 in Lviv, 40,000 in Kiev, 10,000 in Zhytomyr, 5,000 each in Dniprodzerzhynsk and Chervonohrad, and 2,000 in Kharkiv. From September 8–10, 1989, writer Ivan Drach was elected to head Rukh, the People's Movement of Ukraine, at its founding congress in Kiev. On September 17, between 150,000 and 200,000 people marched in Lviv, demanding the legalization of the Ukrainian Greek Catholic Church. On September 21, 1989, exhumation of a mass grave begins in Demianiv Laz, a nature preserve south of Ivano-Frankivsk. On September 28, First Secretary of the Communist Party of the Ukraine Volodymyr Shcherbytsky, a holdover from the Brezhnev era, was replaced by Vladimir Ivashko.
Output (English): How many protesters were there in Lviv?