A group of people are sitting in an auditorium looking at a screen on the stage.
people are standing in the auditoriam
Just because people are in an sitting and in an auditorium does not mean that there are people standing in the auditorium.
exists e1 e2 x1 x2 x3 x4 x5.(n_stage(x5) & for(e1,e2) & at(e2,x4) & on(x4,x5) & n_screen(x4) & Actor(e2,x1) & v_look(e2) & in(e1,x3) & n_auditorium(x3) & Actor(e1,x1) & v_sit(e1) & of(x1,x2) & n_people(x2) & n_group(x1))
exists e1 x1 x2.(n_auditoriam(x2) & in(e1,x2) & Actor(e1,x1) & v_stand(e1) & n_people(x1))