p rt, shrt fr ptcl rt, s styl f vsl rt tht ss ptcl llsns. p rtwrks r bstrct, wth mny bttr-knwn pcs crtd n blck nd wht. Typclly, thy gv th vwr th mprssn f mvmnt, hddn mgs, flshng nd vbrtng pttrns, r swllng r wrpng.