A maitre de is talking to people who are standing in line.
a maitre de is talking to people who are standing in line waiting for a show.
Just because people are standing in line does not mean they are waiting for a show.
exists e1 e2 x1 x2 x3 x4 x5.(to(e1,x3) & in(e2,x5) & n_line(x5) & Actor(e2,x4) & v_stand(e2) & (x3 = x4) & n_people(x3) & Actor(e1,x1) & v_talk(e1) & ne_org_de(x1) & (x1 = x2) & ne_org_maitre(x2))
exists e3 e1 e2 x1 x2 x3 x4 x5 x6.(to(e1,x3) & for(e2,e3) & for(e3,x6) & n_show(x6) & Actor(e3,x4) & v_wait(e3) & in(e2,x5) & n_line(x5) & Actor(e2,x4) & v_stand(e2) & (x3 = x4) & n_people(x3) & Actor(e1,x1) & v_talk(e1) & ne_org_de(x1) & (x1 = x2) & ne_org_maitre(x2))