A brown dog and a spotted dog squabble over a dog toy.
A dog is brown
A brown dog is a rephasing of A dog is brown.
exists s1 s2 s3 x1 x2 x3 x4 x5.(a_topic(s1) & subset_of(x2,s1) & over(x2,x4) & n_toy(x4) & of(x4,x5) & n_dog(x5) & n_squabble(x2) & of(x2,x3) & n_dog(x3) & a_spotted(s3) & Theme(s3,x2) & subset_of(x1,s1) & n_dog(x1) & a_brown(s2) & Theme(s2,x1))
exists s1 x1.(Theme(s1,x1) & a_brown(s1) & n_dog(x1))