sentence: It is better that they do a certain amount of community work , for example clean off their graffiti , which will teach them how hard it is to clean off graffiti , and thus , prevent them from making new graffiti .
modified: It is better that they do a certain amount of community work , for example clean their graffiti , which will teach them how hard it is to clean graffiti , and thus , prevent them from making new ones .
transformation: PART, PART, NOUN