A group of people sitting on a bench.
Some people are playing tennis.
You cannot play tennis while sitting.
exists e1 x1 x2 x3 x4.(a_topic(x1) & of(x1,x2) & on(e1,x4) & n_bench(x4) & Actor(e1,x3) & v_sit(e1) & (x2 = x3) & n_people(x2) & n_group(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_tennis(x2) & n_people(x1))