Two people running track at night.
the people are athletes
People can run without being athletes.
exists e1 x1 x2 x3 x4.(a_topic(x1) & at(e1,x4) & n_night(x4) & Theme(e1,x3) & Actor(e1,x2) & v_run(e1) & n_track(x3) & (x1 = x2) & n_people(x1) & card_eq_2(x1))
exists p1 x1.(n_people(x1) & exists x2.((x1 = x2) & n_athlete(x2)))