An athlete performs the high jump.
They are in a track event.
You can not infer they are at a track event.
exists e1 s1 x1 x2.(n_jump(x2) & a_high(s1) & Theme(s1,x2) & Theme(e1,x2) & Actor(e1,x1) & v_perform(e1) & n_athlete(x1))
exists p1 x1.(n_thing(x1) & exists x2 x3.(in(x1,x2) & n_event(x2) & of(x2,x3) & n_track(x3)))