His mother was called Albert Henneberg and his father Augusta Boltman was an opera singer .
His mother was named Albert Henneberg , and his father , Augusta Boltman , was an opera singer .
His mother was named Albert Henneberg , and his father , Augusta Boltman , was an opera singer .
文の言い換えを書いてください: His mother was called Albert Henneberg and his father Augusta Boltman was an opera singer . 出力: