A vehicle climbs on rocks near a forest.
A couple of ATVs are headed towards a trail entrance in a forest.
Not all vehicles are ATVs and a vehicle climbing rocks near a forest does not mean that the vehicle is headed towards a trail entrance.
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 x3 x4 x5.(towards(e1,x3) & in(x3,x5) & n_forest(x5) & n_entrance(x3) & of(x3,x4) & n_trail(x4) & Theme(e1,x1) & v_head(e1) & of(x1,x2) & n_atv(x2) & n_couple(x1))