A man is sitting on a black and brown dog.
The man and the dog are relaxing.
A dog and a man can be relaxing together without one of them sitting on the other one. There are many ways for a man and a dog to relax together.
exists e1 s1 s2 x1 x2.(on(e1,x2) & n_dog(x2) & a_brown(s2) & Theme(s2,x2) & a_black(s1) & Theme(s1,x2) & Actor(e1,x1) & v_sit(e1) & n_man(x1))
exists e1 x1 x2 x3.(n_dog(x3) & n_man(x2) & Actor(e1,x1) & v_relax(e1) & subset_of(x3,x1) & subset_of(x2,x1))