Two kids stand on a dirt mound near a bulldozer.
Two kids stand on dirt near a construction site.
dirt  doesn't always mean construction site
exists e1 x1 x2 x3 x4.(on(e1,x2) & near(x2,x4) & n_bulldozer(x4) & n_mound(x2) & of(x2,x3) & n_dirt(x3) & Actor(e1,x1) & v_stand(e1) & n_kid(x1) & card_eq_2(x1))
exists e1 x1 x2 x3 x4.(on(e1,x2) & near(x2,x3) & n_site(x3) & of(x3,x4) & n_construction(x4) & n_dirt(x2) & Actor(e1,x1) & v_stand(e1) & n_kid(x1) & card_eq_2(x1))