Man on stool making art on city sidewalk.
A person is sleeping on city sidewalk.
Making art is not the same as sleeping.
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & on(x1,x2) & on(x2,x4) & n_sidewalk(x4) & of(x4,x5) & n_city(x5) & n_art(x2) & Actor(e1,x2) & v_make(e1) & of(x2,x3) & n_stool(x3) & n_man(x1))
exists e1 x1 x2 x3.(on(e1,x2) & n_sidewalk(x2) & of(x2,x3) & n_city(x3) & Actor(e1,x1) & v_sleep(e1) & n_person(x1))