There is a person standing on top of a stairway outside of a Costco store.
The person is at the store.
A person is standing outside the store.
exists p1 x1 x2 x3 x4 x5 x6 x7 x8.((x1 = x2) & on(x2,x4) & of(x4,x5) & of(x6,x7) & n_store(x7) & of(x7,x8) & n_costco(x8) & outside(x5,x6) & n_thing(x6) & n_stairway(x5) & n_top(x4) & n_standing(x2) & of(x2,x3) & n_person(x3))
exists p1 x1 x2.(n_store(x2) & n_person(x1) & at(x1,x2))