Greyhound are racing on a track, and number eight is making a run for first
They are on a racetrack.
the greyhound need not be racing on a racetrack
exists e2 e1 s1 x1 x2 x3 x4.(ne_geo_greyhound(x1) & for(e2,s1) & Theme(s1,x3) & a_first(s1) & Theme(e2,x4) & Actor(e2,x3) & v_make(e2) & n_run(x4) & n_number(x3) & card_eq_8(x3) & on(e1,x2) & n_track(x2) & Actor(e1,x1) & v_race(e1))
exists p1 x1.(n_thing(x1) & exists x2.(on(x1,x2) & n_racetrack(x2)))