question: At which two establishments was the last of these performances conducted at on 25 and 26 April 1841 ?
answer: Salle Pleyel and the Paris Conservatory
turker_answer: Salle Pleyel and the Paris Conservatory were two establishments that was the last of these performances conducted at on 25 and 26 April 1841
rule-based: The last of these performances conducted at on 25 and 26 April 1841 was at Salle Pleyel and the Paris Conservatory .