Five people are standing in a line on stairs.
Friends are waiting in line for a concert.
We have no idea if the people are friends, they could be anyone. We have no idea they are at a concert, they could be anywhere.
exists e1 x1 x2 x3.(on(e1,x3) & n_stair(x3) & in(e1,x2) & n_line(x2) & Actor(e1,x1) & v_stand(e1) & n_people(x1) & card_eq_5(x1))
exists e1 x1 x2 x3.(for(e1,x3) & n_concert(x3) & in(e1,x2) & n_line(x2) & Actor(e1,x1) & v_wait(e1) & n_friend(x1))