sentence: The U.S. researchers from two universities in the state of Pennsylvania and the Foundation " Rand " American research and development staff to monitor regularly use public transportation or go to work by car in a year .
modified: The U.S. researchers from two universities in the state of Pennsylvania and the Foundation « Rand » American research and development staff to monitor regularly attend public transportation or go to work by car within a year .
transformation: PUNCT, PUNCT, K, VERB, PREP