Old man smoking cigarette on bench.
A man smoking.
One is smoking if they are smoking a cigarette regardless of location.
exists s1 x1 x2 x3 x4.(a_topic(x1) & on(x1,x4) & n_bench(x4) & n_cigarette(x1) & of(x1,x3) & n_smoking(x3) & of(x1,x2) & n_man(x2) & a_old(s1) & Theme(s1,x1))
exists x1 x2.(a_topic(x1) & n_smoking(x1) & of(x1,x2) & n_man(x2))