A dog wears a pink sweater.
A dog is wearing a purple sweater.
The sweater cannot be both pink and purple.
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_sweater(x2) & a_pink(s1) & Theme(s1,x2) & n_dog(x1))
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_sweater(x2) & a_purple(s1) & Theme(s1,x2) & n_dog(x1))