A man performing in a track or athletic competition.
The man is an athletic performer.
The man performing in a track or athletic competition implies he is a performer.
exists e1 x1 x2 x3.(a_topic(x1) & in(e1,x3) & (n_track(x3) | exists s1.(n_competition(x3) & a_athletic(s1) & Theme(s1,x3))) & Actor(e1,x2) & v_perform(e1) & (x1 = x2) & n_man(x1))
exists p1 x1.(n_man(x1) & exists s1 x2.((x1 = x2) & n_performer(x2) & a_athletic(s1) & Theme(s1,x2)))