sentence: My village has been working on this project for decades . They have been fixing their techniques and they still know a day 's everything has cost us a lot of effort , we started with the easiest examples ( dividing rubbish into different containers ) to some that are more complex ( renewable energy ) .
modified: My village has been working on this project for decades they have been fixing their techniques and they still know a day 's everything has cost us a lot of effort we started from the easiest examples ( dividing rubbish into different containers ) to some that are more complex ( renewable energy ) .
transformation: PUNCT, K, PUNCT, PREP