sentence: But in some countries , you can use the underground ( metro ) . It is more advanced than old types , like bus or taxi . The underground is faster and cleaner and .
modified: But in some country , You can use underground ( metro ) , it is very advanced than old types like Bus or Taxi , The underground is faster and clean and arranged .
transformation: NOUN:NUM, ORTH, DET, PUNCT, ADV, PUNCT, ORTH, OTHER, ADJ:FORM, OTHER, K, PUNCT