A motocross bike is being ridden along a woodland path.
A boat is driving down a river.
A motorcross bike is not a boat.
exists e1 x1 x2 x3 x4.(along(e1,x3) & n_path(x3) & of(x3,x4) & n_woodland(x4) & Theme(e1,x1) & v_ride(e1) & n_bike(x1) & of(x1,x2) & n_motocross(x2))
exists e1 s1 x1 x2.(a_down(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_drive(e1) & n_river(x2) & n_boat(x1))