Three greyhounds racing on a track
A race is going and people are betting on which three greyhounds will win
If the greyhounds are on a track, that indicates they are racing.
exists e1 x1 x2 x3.(a_topic(x1) & on(e1,x3) & n_track(x3) & Actor(e1,x2) & v_race(e1) & (x1 = x2) & n_greyhound(x1) & card_eq_3(x1))
exists e2 e3 e1 x1 x2 x3 x4.(Theme(e3,x3) & Actor(e3,x1) & v_go(e3) & on(e1,x3) & Actor(e2,x4) & v_bet(e2) & (x3 = x4) & n_people(x3) & Actor(e1,x2) & v_win(e1) & n_greyhound(x2) & card_eq_3(x2) & n_race(x1))