Winning racer displaying his trophy and waving to the crowd.
A racer practices on the track.
The racer cannot simultaneously be displaying his trophy and practice
exists e2 e3 e1 e4 x1 x2 x3 x4.(n_crowd(x4) & to(e4,x4) & Actor(e4,x3) & v_wave(e4) & n_racer(x3) & Actor(e3,x3) & v_win(e3) & Theme(e2,x2) & Actor(e2,x1) & v_display(e2) & n_trophy(x2) & of(x2,x1) & n_male(x1) & n_racer(x1) & Actor(e1,x1) & v_win(e1))
exists x1 x2 x3.(n_track(x3) & a_topic(x1) & on(x1,x3) & n_practice(x1) & of(x1,x2) & n_racer(x2))