Athletes running in a race.
Humans running.
Athletes is a human race
exists e1 x1 x2 x3.(a_topic(x1) & in(e1,x3) & n_race(x3) & Actor(e1,x2) & v_run(e1) & (x1 = x2) & n_athlete(x1))
exists s1 x1 x2.(n_running(x1) & a_.(s1) & Theme(s1,x1) & (x1 = x2) & ne_nam_humans(x2) & a_topic(x1))