A crowd of people gathered in front of a building at night.
The group of people are waiting for the concert doors to open.
Just because people are gathered around the front of a building does not mean they are waiting for a concert to open.
exists e1 x1 x2 x3 x4 x5 x6.(a_topic(x1) & of(x1,x2) & at(e1,x6) & n_night(x6) & in(e1,x4) & of(x4,x5) & n_building(x5) & n_front(x4) & Theme(e1,x3) & v_gather(e1) & (x2 = x3) & n_people(x2) & n_crowd(x1))
exists e1 p1 x1 x2 x3 x4.(n_door(x3) & of(x3,x4) & n_concert(x4) & n_group(x1) & Topic(e1,p1) & Actor(e1,x1) & v_wait(e1) & exists e2.(Actor(e2,x3) & v_open(e2)) & of(x1,x2) & n_people(x2))