A man working on his computer.
A man naps in a recliner.
If you are working you are not taking a nap.
exists e1 x1 x2 x3.(a_topic(x1) & on(e1,x3) & n_computer(x3) & of(x3,x1) & n_male(x1) & Actor(e1,x2) & v_work(e1) & (x1 = x2) & n_man(x1))
exists e1 x1 x2.(in(e1,x2) & n_recliner(x2) & Actor(e1,x1) & v_nap(e1) & n_man(x1))