People are standing while waiting to the exit area.
The exit area is crowded
People standing and waiting doesn't necessarily imply that the area is crowded.
exists e2 e1 x1 x2 x3.(n_area(x2) & of(x2,x3) & n_exit(x3) & while(e1,e2) & to(e2,x2) & Actor(e2,x1) & v_wait(e2) & Actor(e1,x1) & v_stand(e1) & n_people(x1))
exists e1 x1 x2.(n_area(x1) & of(x1,x2) & n_exit(x2) & Theme(e1,x1) & v_crowd(e1))