Czerny was a teacher of Franz Liszt, Sigismund Thalberg and Theodor Leschetizky.

Entity and relation annotations:
id: 0
type: entity
value: text: Czerny
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value: text: Franz Liszt
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id: 2
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value: text: Sigismund Thalberg
labels: <Person>
id: 3
type: entity
value: text: Theodor Leschetizky
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type: relation
to_id: 2
labels: Person:business/work:Person
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labels: Person:business/work:Person
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