Two hockey players are playing in a rink
Two people playing hockey.
Two hockey players are playing, hockey players play hockey
exists e1 x1 x2 x3.(in(e1,x3) & n_rink(x3) & Actor(e1,x1) & v_play(e1) & n_player(x1) & of(x1,x2) & n_hockey(x2) & card_eq_2(x1))
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & n_hockey(x3) & (x1 = x2) & n_people(x1) & card_eq_2(x1))