sentence: Due to an unsuccessful operation he had on his leg , he is addicted to painkillers which he makes several attempts to detox from motivated by his only friend Dr. Wilson , but he never really wants to , so he gets addicted again .
modified: Due to an unsuccessful surgery he had on his leg , he is addicted to painkillers which he makes several attempts to detox from motivated by his only friend Dr. Wilson , but he never really wants to so he gets addicted again .
transformation: NOUN, PUNCT