A brown dog and a white and black dog are running in grass.
dogs chasing birds
Just because a brown dog and a white and black dog are running in grass does not mean they are chasing birds.
exists e1 s1 s2 s3 x1 x2 x3 x4.(in(e1,x4) & n_grass(x4) & Actor(e1,x1) & v_run(e1) & subset_of(x3,x1) & n_dog(x3) & a_black(s3) & Theme(s3,x3) & a_white(s2) & Theme(s2,x3) & subset_of(x2,x1) & n_dog(x2) & a_brown(s1) & Theme(s1,x2))
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_chase(e1) & n_bird(x3) & (x1 = x2) & n_dog(x1))