question: Who was a student of Chopin 's former students and actually recorded some Chopin music ?
answer: Raoul Koczalski
turker_answer: Raoul Koczalski was a student of Chopin 's former students and actually recorded some Chopin music .
rule-based: Raoul Koczalski was a student of Chopin 's former students and actually recorded some Chopin music .