A small group of people are standing up looking at something in front of them.
The passengers on the aircraft are frustrated because their flight has been delayed.
People looking at something is an action while passengers being frustrated is an emotion.
exists e1 e2 s1 s2 x1 x2 x3 x4.(for(e1,e2) & at(e2,x3) & in(x3,x4) & of(x4,x1) & n_thing(x1) & n_front(x4) & n_thing(x3) & Actor(e2,x1) & v_look(e2) & a_up(s2) & Manner(e1,s2) & Actor(e1,x1) & v_stand(e1) & of(x1,x2) & n_people(x2) & n_group(x1) & a_small(s1) & Theme(s1,x1))
exists e1 p1 x1 x2 x3.(n_flight(x3) & of(x3,x1) & n_thing(x1) & n_aircraft(x2) & n_passenger(x1) & exists e2.(Theme(e2,x3) & v_delay(e2)) & because(e1,p1) & Theme(e1,x1) & v_frustrate(e1) & on(x1,x2))