explain the difference between a work of art intended for documentation and one intended for commemoration how can a worker buy a tendon as a documentation become also a piece of commemoration

Sorry about the calculator and me asap me asap because for real like some no one answers question one for me so that's why i'm posting them over to that way someone can at least answer number two or one for me if you do you so much if you do it would be a complete big blessing to me