Two kids stand on a dirt mound near a bulldozer.
Two kids sit on dirt.
The kids can either sit or stand, not both.
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.(on(e1,x2) & n_dirt(x2) & Actor(e1,x1) & v_sit(e1) & n_kid(x1) & card_eq_2(x1))