A brown dog in midair with a Frisbee in his mouth.
A black dog is laying on a couch.
One dog is black, the other is brown which are two completely different colors. One dog is laying on the couch while the other is midair with a Frisbee in his mouth, neither of which can be done while doing the other activity.
exists s1 x1 x2 x3 x4.(a_topic(x1) & in(x1,x2) & with(x2,x3) & in(x3,x4) & n_mouth(x4) & of(x4,x1) & n_male(x1) & n_frisbee(x3) & n_midair(x2) & n_dog(x1) & a_brown(s1) & Theme(s1,x1))
exists e1 s1 x1 x2.(on(e1,x2) & n_couch(x2) & Actor(e1,x1) & v_lay(e1) & n_dog(x1) & a_black(s1) & Theme(s1,x1))