A man on a ladder scraping some molding on a building.
A man scrapes molding for a sample.
building is not the same as sample.
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & on(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_scrape(e1) & on(x4,x5) & n_building(x5) & n_molding(x4) & (x2 = x3) & n_ladder(x2) & n_man(x1))
exists e1 p1 x1.(exists e2 x2.(for(e2,x2) & n_sample(x2) & Actor(e2,x1) & v_mold(e2)) & Topic(e1,p1) & Actor(e1,x1) & v_scrape(e1) & n_man(x1))