sentence: The vital , small rail links may now be closed , whereas previously they where subsidised to make up the loss . Now the private companies can not afford to do this , so many will close , cutting off small towns and villages .
modified: The vital , small rail links may now be closed , priviously they where subsudised to make up the loss , now the privite companies can not afford to do this so many will close , cutting off small towns and villages .
transformation: PREP, SPELL, SPELL, PUNCT, SPELL, PUNCT