People playing a game of polocrosse.
There is a game of polocrosse being played.
People playing a game implies there is a game being played.
exists e1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & of(x3,x4) & n_polocrosse(x4) & n_game(x3) & (x1 = x2) & n_people(x1))
exists p1 x1 e1 x2 x3 x4.((x1 = x2) & of(x2,x3) & Theme(e1,x4) & v_play(e1) & (x3 = x4) & n_polocrosse(x3) & n_game(x2))