The large brown dog is walking through the green grass.
A blue dog walking through the grass.
The dog must either be brown or blue, not both.
exists e1 s1 s2 s3 x1 x2.(n_grass(x2) & a_green(s3) & Theme(s3,x2) & n_dog(x1) & a_brown(s2) & Theme(s2,x1) & a_large(s1) & Theme(s1,x1) & through(e1,x2) & Actor(e1,x1) & v_walk(e1))
exists s1 x1 x2 x3.(n_grass(x3) & a_topic(x1) & through(x1,x3) & n_walking(x1) & of(x1,x2) & n_dog(x2) & a_blue(s1) & Theme(s1,x1))