A group of people are standing at a concert.
People are standing in line at the store.
They are at concert or store.
exists e1 x1 x2 x3.(at(e1,x3) & n_concert(x3) & Actor(e1,x1) & v_stand(e1) & of(x1,x2) & n_people(x2) & n_group(x1))
exists e1 x1 x2 x3.(n_store(x3) & at(e1,x3) & in(e1,x2) & n_line(x2) & Actor(e1,x1) & v_stand(e1) & n_people(x1))