The brown dog is walking through a river surrounded by bushes.
A dog is walking with his owner through a forest.
A dog doesn't always walk with his owner.
exists e1 e2 s1 x1 x2 x3 x4.(n_dog(x1) & a_brown(s1) & Theme(s1,x1) & through(e1,x2) & Actor(e2,x4) & n_bush(x4) & Theme(e2,x3) & v_surround(e2) & (x2 = x3) & n_river(x2) & Actor(e1,x1) & v_walk(e1))
exists e1 x1 x2 x3.(through(e1,x3) & n_forest(x3) & with(e1,x2) & n_owner(x2) & of(x2,x1) & n_male(x1) & Actor(e1,x1) & v_walk(e1) & n_dog(x1))