sentence: On the other hand , people make other inventions to improve the world and reduce pollution . For example , at this time we have created electric cars and organic food . These things will be very useful in the future , because we will need to reduce pollution .
modified: For other hand , People make other inventions for improving the world and reduce pollution , for example , In this time we have created electric cars or organic food , these things are very useful in future , because we will need to reduce pollution .
transformation: OTHER, ORTH, PART, VERB:FORM, PUNCT, PREP, CONJ, PUNCT, VERB:TENSE, DET