Two hockey players are playing in a rink
two people practicing how to play hockey.
Just because hockey players are playing in a rink it does not mean they are practicing how to 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) & Topic(e1,x3) & Actor(e1,x2) & v_practice(e1) & n_manner(x3) & exists e2 x4 x5.(Theme(e2,x5) & Actor(e2,x4) & v_play(e2) & n_hockey(x5)) & (x1 = x2) & n_people(x1) & card_eq_2(x1))