A pit crew working on a race car.
The pit crew is playing golf.
If a pit crew is working on a race car they are not playing golf.
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & on(e1,x4) & n_car(x4) & of(x4,x5) & n_race(x5) & Actor(e1,x3) & v_work(e1) & (x1 = x3) & n_crew(x1) & of(x1,x2) & n_pit(x2))
exists e1 x1 x2 x3.(n_crew(x1) & of(x1,x2) & n_pit(x2) & Theme(e1,x3) & Actor(e1,x1) & v_play(e1) & n_golf(x3))