sentence: Scientists have been able to provide , in recent years , new means of transport , from cycles , to motorcycles , motorcars , trains , metros , which have been used to arrange and accomplish complete public transportation networks throughout a country , and sometimes extend it beyond another country 's border by agreement between those countries .
modified: Scientists could provide in the past years new transportation tools from cycles , automobiles up to motorcycles , motorcars , trains , metros that has been used to arrange and accomplish complete public transportation net through the same country , and sometimes exceeded it to another country boarder upon an agreement between those countries .
transformation: OTHER, PUNCT, DET, ADJ, PUNCT, OTHER, PUNCT, NOUN, PREP, PUNCT, DET, VERB:SVA, NOUN, PREP, DET, ADJ, VERB, PREP, NOUN:POSS, NOUN, PREP, DET