A person on a motorbike rides on a trail through a green forest.
A person on a motorbike rides on a trail through the water
He can't ride though a green forest and through the water at the same time.
exists e1 s1 x1 x2 x3 x4.(through(e1,x4) & n_forest(x4) & a_green(s1) & Theme(s1,x4) & on(e1,x3) & n_trail(x3) & Actor(e1,x1) & v_ride(e1) & on(x1,x2) & n_motorbike(x2) & n_person(x1))
exists e1 x1 x2 x3 x4.(n_water(x4) & through(e1,x4) & on(e1,x3) & n_trail(x3) & Actor(e1,x1) & v_ride(e1) & on(x1,x2) & n_motorbike(x2) & n_person(x1))