Original sentence: Ernö Rapée (or Erno Rapee) (4 June 1891 – 26 June 1945) was an American symphonic conductors
Edited sentence: Ernö Rapée (or Erno Rapee) (4 June 1891 – 26 June 1945) was one of the most prolific American symphonic conductors in the first half of the 20th Century