sentence: Nowadays , public transport is a useful and convenient way of travelling , especially for students , people with a low socioeconomic status , or anyone who wants to go to work or school by bus , train or by subway .
modified: Nowadays , public transport is a useful and convenient way of travelling , especially for students , people with low socioeconomic status or for everyone who wants to go to work or school by bus , train or by subway .
transformation: DET, PUNCT, PREP, NOUN