A group of people in line at a music venue.
A group of people are waiting to see a rock concert.
just because a group of people are queuing  at a music venue doesn't mean they are waiting to see a rock concert.
exists x1 x2 x3 x4 x5.(a_topic(x1) & at(x1,x4) & n_venue(x4) & of(x4,x5) & n_music(x5) & of(x1,x2) & in(x2,x3) & n_line(x3) & n_people(x2) & n_group(x1))
exists e1 p1 x1 x2.(Topic(e1,p1) & Actor(e1,x1) & v_wait(e1) & exists e2 x3 x4.(Theme(e2,x3) & Actor(e2,x1) & v_see(e2) & n_concert(x3) & of(x3,x4) & n_rock(x4)) & of(x1,x2) & n_people(x2) & n_group(x1))