sentence: As for the pollution , it could be reduced if people used public transport ; it is well - known that CO2 emissions per passenger kilometre by public means of transport are 80% less than a car .
modified: As for the pullotion , it could be reduced if people use the public vehicles ; it is well - known that the CO2 emissions per passenger kilometre by public means of transportation are 80% less than a car .
transformation: SPELL, VERB:TENSE, DET, NOUN, DET, MORPH