Original sentence: The Korean alphabet, also known as Hangul ( ; from Korean   ) or Chosŏn'gŭl, has been used to write the Korean language since its creation in the 15th century by Sejong the Great
Edited sentence: Hangul ( ; from Korean   ) or Chosŏn'gŭl, is the Korean alphabet.It has been used to write the Korean language since its creation in the 15th century by Sejong the Great