sentence: The car is a more comfortable mode of transport than public transport , but it is not sustainable , its cost is higher , and if all people travel by car , the cities will be very polluted .
modified: The car is a transport more comfortable than the public transport but is not sustainable , its cost is higuer and if all people move by car , The cities will be very pollutes .
transformation: OTHER, DET, PUNCT, PRON, OTHER, VERB, ORTH, ADJ:FORM