children playing an informal game of hockey
Students practice hockey skills in an impromptu game.
WE have no idea if they children are students and if they are playing or having a practice.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & of(x3,x4) & n_hockey(x4) & n_game(x3) & a_informal(s1) & Theme(s1,x3) & (x1 = x2) & n_child(x1))
exists s1 x1 x2 x3 x4 x5.(a_topic(x1) & in(x1,x5) & n_game(x5) & a_impromptu(s1) & Theme(s1,x5) & n_skill(x1) & of(x1,x4) & n_hockey(x4) & of(x1,x3) & n_practice(x3) & (x1 = x2) & ne_nam_students(x2))