A vehicle climbs on rocks near a forest.
A car drives over a boulder.
Not all rocks are a boulder.
exists e1 x1 x2 x3.(on(e1,x2) & near(x2,x3) & n_forest(x3) & n_rock(x2) & Actor(e1,x1) & v_climb(e1) & n_vehicle(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_drive(e1) & r_over(x2) & n_boulder(x2) & n_car(x1))