A group of people practicing performing music.
Musicians practicing for a big upcoming Christmas performance.
A group of people practicing performing music does not necessarily mean that they are practicing for upcoming Christmas performance.
exists e1 x1 x2 x3 x4.(a_topic(x1) & of(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_perform(e1) & n_music(x4) & (x2 = x3) & n_people(x2) & n_group(x1))
exists s1 s2 x1 x2 x3 x4.(a_topic(x1) & for(x1,x3) & n_performance(x3) & (x3 = x4) & ne_tim_christmas(x4) & a_upcoming(s2) & Theme(s2,x3) & a_big(s1) & Theme(s1,x3) & n_practicing(x1) & (x1 = x2) & ne_nam_musicians(x2))