A black dog is chasing another black dog who is holding a ball, a wheel, and some red rope.
A dog chasing another dog.
"A black dog is chasing another black dog" is a more specific way of saying "A dog chasing another dog."
exists e1 e2 s1 s2 s3 s4 x1 x2 x3 x4 x5 x6 x7 x8.(Theme(e2,x2) & Actor(e2,x1) & v_chase(e2) & Theme(e1,x4) & Actor(e1,x3) & v_hold(e1) & subset_of(x6,x4) & subset_of(x8,x6) & n_rope(x8) & a_red(s4) & Theme(s4,x8) & subset_of(x7,x6) & n_wheel(x7) & subset_of(x5,x4) & n_ball(x5) & (x2 = x3) & n_dog(x2) & a_black(s3) & Theme(s3,x2) & -(x2 = x1) & n_dog(x1) & n_dog(x1) & a_black(s2) & Theme(s2,x1) & a_black(s1) & Theme(s1,x1))
exists x1 x2 x3.(a_topic(x1) & n_dog(x3) & rel(x1,x3) & n_chasing(x1) & of(x1,x2) & n_dog(x2))