question: What was the name of the teacher of Chopin 's three year course that began in the fall of 1826 ?
answer: Józef Elsner
turker_answer: The name of the teacher of Chopin 's three year course that began in the fall of 1826 was Józef Elsner .
rule-based: The name of the teacher of Chopin 's three year course that began in the fall of 1826 was Józef Elsner .