sentence: Public transport mainly means public bus . People used to travel long distances by public bus . It is possible to carry large numbers of people to different places by bus .
modified: public transport means mainly pubic bus.people used to travell long disistance by publis bus .it is possible to carry large number of people of different places to carry in bus .
transformation: ORTH, WO, ADJ, ORTH, SPELL, SPELL, SPELL, ORTH, NOUN:NUM, PREP, VERB, PREP