An old man looks at people shopping.
An old man is being lazy on the couch.
A man who looks at people shopping can't at the same time be being lazy on the couch.
exists e1 s1 x1 x2.(r_shopping(e1) & at(e1,x2) & n_people(x2) & Actor(e1,x1) & v_look(e1) & n_man(x1) & a_old(s1) & Theme(s1,x1))
exists s1 s2 x1 x2.(n_couch(x2) & on(s2,x2) & Theme(s2,x1) & a_lazy(s2) & n_man(x1) & a_old(s1) & Theme(s1,x1))